Internal Power Switch Buck Try our new parametric tables

Quick Power Search
Input V V
Output V A
       
Actual circuit performance depends on external components, layout and thermal considerations. Please consult the datasheet for all final electrical specifications. For assistance in selecting a part, please contact your local sales representative
  • Change Columns Shown
  • Reset
Add/Remove Columns
Click Update button to apply
Number of Outputs Vin Min Vin Max Output Current Vout Min Synchronous Comments Packages Frequency Isupply Features Ishutdown Vout Max Vref Accuracy Over Temp Frequency Adjust Range Frequency Sync Range Temp Range Architecture Switch Current Integrated Inductor Topology Monolithic Topology 1 Topology 2 Output Current 2 Vout Min 2 Vout Max 2 Topology 3 Output Current 3 Vout Min 3 Vout Max 3 Topology 4 Output Current 4 Design Tools Demo Boards Featured New Date Added Price 1k* Package Area Product Category Package Height Terminal Finish Export Control Auto & Transport
Units V V A V yes/no kHz mA µA V % A yes/no yes/no A V V A V V A mm² mm yes/no
Selection
(hold Ctrl key to select multiple,
hold Shift key to select range)
LT1074 1 7.3 45 4.4 2.21 no Programmable Current Limit TO-220 100 8.5 - 140 35 C,I Constant Frequency Current Mode 6.5 no Buck, Inverting yes - - LTspice File - no no 1992-11-19 $5.05 (LT1074CT) 165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) High Input Voltage Buck,Internal Power Switch Buck,Inverting Regulators 4.57mm (TO-220),4.57mm (TO-220),4.57mm (TO-220) Lead,Matte Tin no no
LT1074HV 1 7.3 64 4.4 2.21 no Programmable Current Limit, HV Vin Up To 60V TO-220 100 8.5 - 140 35 C,I Constant Frequency Current Mode 6.5 no Buck, Inverting yes - - LTspice File - no no 1992-11-19 $7.60 (LT1074HVCT) 165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) High Input Voltage Buck,Internal Power Switch Buck,Inverting Regulators 4.57mm (TO-220),4.57mm (TO-220),4.57mm (TO-220),4.57mm (TO-220) Lead,Matte Tin no no
LT1076 1 7.3 45 1.6 2.21 no Programmable Current Limit DDPAK-5,DDPAK-7,TO-220 100 8.5 - 140 35 C,I Constant Frequency Current Mode 2.6 no Buck, Inverting yes - - LTspice File - no no 1992-11-19 $3.40 (LT1076CT) 99.1mm² (DDPAK-7),99.1mm² (DDPAK-5),165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) High Input Voltage Buck,Internal Power Switch Buck,Inverting Regulators 4.57mm (TO-220),4.57mm (TO-220),4.57mm (DDPAK-7),4.57mm (TO-220),4.57mm (DDPAK-5) Lead,Matte Tin no no
LT1076HV 1 7.3 60 1.6 2.21 no Programmable Current Limit, HV Vin Up To 60V DDPAK-7,TO-220 100 8.5 - 140 35 C,I Constant Frequency Current Mode 2.6 no Buck, Inverting yes - - LTspice File - no no 1992-11-19 $6.00 (LT1076HVCT) 99.1mm² (DDPAK-7),165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) High Input Voltage Buck,Internal Power Switch Buck,Inverting Regulators 4.57mm (TO-220),4.57mm (TO-220),4.57mm (TO-220),4.57mm (DDPAK-7) Matte Tin,Lead no no
LT1941 3 3.3 25 3 0.628 no Triple Output 3A Buck, 2A Buck, 1.5A Inverting/Boost TSSOP-28 1100 2 Anti-Phase Switching, Power Good 50 35.2 1.6 E Constant Frequency Current Mode 4.3 no Buck, Boost, Sepic, Flyback, Inverting yes Buck Buck 2 0.628 35.2 Inverting, Boost 1.25 40 LTspice File DC621A no no 2004-06-03 $5.25 (LT1941EFE) 62.7mm² (TSSOP-28) Buck Regulator Plus LDO,Internal Power Switch Boost,Internal Power Switch Buck,Multiple Output Buck,Multitopology DC/DC,SEPIC Regulators 1.2mm (TSSOP-28) Lead,Matte Tin no no
LTC3407A 2 2.5 5.5 0.6 0.6 yes Dual 600mA Buck, 1.5MHz, LTC3407A Offers Low Ripple Burst Mode 3x3 DFN-10,MS-10E 1500 0.1 Burst Mode, Power On Reset, External Synchronization, 100% Duty Cycle 40 5 2 1.5MHz E,I Constant Frequency Current Mode 1 no Buck yes Buck Buck 0.6 0.6 - LTspice Model,LTpowerCAD Model DC1180A no no 2003-06-18 $2.60 (LTC3407AEDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin,Lead no yes
LT1943 4 4.5 22 2.4 1.25 no High Current Quad Output Regulator for TFT LCD Displays TSSOP-28 1200 10 Integrated Schottky Diode, Power Good 35 35 E Constant Frequency Current Mode 3.2 no Boost, Inverting, Buck yes Buck Boost, Sepic, Flyback 1.25 40 Boost 1.25 40 Inverting LTspice Model DC620A,DC697A no no 2003-09-30 $4.75 (LT1943EFE) 62.7mm² (TSSOP-28) Internal Power Switch Boost,Internal Power Switch Buck,LCD/CCD/OLED Bias,Multiple Output Boost,Multitopology DC/DC 1.2mm (TSSOP-28) Lead,Matte Tin no no
LT1776 1 7.4 40 0.56 1.24 no 60V Transient Protection N-8,SO-8 200 3.2 External Synchronization 30 34 2 250kHz - 400kHz C,I Constant Frequency Current Mode 0.7 no Buck yes - - LTspice Model DC204A-B no no 1998-09-16 $2.50 (LT1776CN8) 31mm² (SO-8),65.7mm² (N-8) High Input Voltage Buck,Internal Power Switch Buck 1.75mm (SO-8),3.3mm (N-8) Lead,Matte Tin no no
LT1940 2 3.6 25 1.4 1.25 no Dual Output 1.4A Buck TSSOP-16 1100 3.8 Anti-Phase Switching, Power Good 30 22 E Constant Frequency Current Mode 2.4 no Buck yes Buck Buck 1.4 1.25 - LTspice Model,LTpowerCAD Model DC519A no no 2002-07-17 $3.70 (LT1940EFE) 32.6mm² (TSSOP-16) Internal Power Switch Buck,Multiple Output Buck 1.1mm (TSSOP-16) Lead,Matte Tin no no
LT1940L 2 3.6 7 1.4 1.25 no Dual Output 1.4A Buck, 7V Maximum Input Voltage TSSOP-16 1100 3.8 Anti-Phase Switching, Power Good 30 22 E Constant Frequency Current Mode 2.4 no Buck yes Buck Buck 1.4 1.25 - LTspice Model,LTpowerCAD Model DC519A no no 2002-07-17 $2.70 (LT1940LEFE) 32.6mm² (TSSOP-16) Internal Power Switch Buck,Multiple Output Buck 1.1mm (TSSOP-16) Lead,Matte Tin no no
LT3430 1 5.5 60 2.75 1.2 no 200kHz Switching TSSOP-16 200 1.5 External Synchronization 30 54 228kHz - 700kHz E,I Constant Frequency Current Mode 5 no Buck, Inverting yes - - LTspice File,LTpowerCAD Model DC1200A,DC471A no no 2002-08-19 $4.95 (LT3430EFE) 32.6mm² (TSSOP-16) High Input Voltage Buck,Internal Power Switch Buck 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3430-1 1 5.5 60 2.75 1.2 no 100kHz Switching TSSOP-16 100 1.5 External Synchronization 30 54 125kHz - 250kHz E,I Constant Frequency Current Mode 5 no Buck, Inverting yes - - LTspice File,LTpowerCAD Model DC1200A,DC471A no no 2002-08-19 $4.95 (LT3430EFE-1) 32.6mm² (TSSOP-16) High Input Voltage Buck,Internal Power Switch Buck 1.1mm (TSSOP-16) Matte Tin no yes
LT3431 1 5.5 60 2.75 1.2 no 500kHz Switching Frequency TSSOP-16 500 2.5 External Synchronization 30 48 580kHz - 700kHz E,I Constant Frequency Current Mode 5 no Buck, Inverting yes - - LTspice File,LTpowerCAD Model DC549A no no 2003-03-27 $4.95 (LT3431EFE) 32.6mm² (TSSOP-16) High Input Voltage Buck,Internal Power Switch Buck 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3506 2 3.6 25 1.6 0.8 no Dual 1.6A Buck, LT3506 575kHz Switching Frequency 5x4 DFN-16,TSSOP-16 575 3.8 Anti-Phase Switching, Sequencing, Power Good 30 23.25 E,I Constant Frequency Current Mode 2.6 no Buck yes Buck Buck 1.6 1.25 - LTspice File,LTpowerCAD Model DC958A no no 2006-09-13 $2.95 (LT3506EDHD) 20mm² (5x4 DFN-16),32.6mm² (TSSOP-16) Internal Power Switch Buck,Multiple Output Buck 0.75mm (5x4 DFN-16),1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3506A 2 3.6 25 1.6 0.8 no Dual 1.6A Buck, LT3506A 1.1MHz Switching Frequency 5x4 DFN-16,TSSOP-16 1100 3.8 Anti-Phase Switching, Sequencing, Power Good 30 23.25 E,I Constant Frequency Current Mode 2.6 no Buck yes Buck Buck 1.6 1.25 - LTspice File,LTpowerCAD Model DC958A no no 2006-09-13 $2.95 (LT3506AEDHD) 20mm² (5x4 DFN-16),32.6mm² (TSSOP-16) Internal Power Switch Buck,Multiple Output Buck 0.75mm (5x4 DFN-16),1.1mm (TSSOP-16) Lead,Matte Tin no yes
LTC7130 1 4.5 20 20 0.6 yes 20V 20A Monolithic Buck Converter with Ultralow DCR Sensing 7.5mm × 6.25mm × 2.22mm BGA 770 3.8 PolyPhase, Output Current Limit, Differential Remote Sense, Tracking, Resistor Set Frequency, External Synchronization, Power Good 30 5.5 0.5 250kHz - 770kHz 250kHz - 770kHz E,I Constant Frequency Current Mode 25 no Buck yes Buck LTpowerCAD File DC2341A no yes 2016-03-25 $7.95 (LTC7130EY) 46.9mm² (7.5mm × 6.25mm × 2.22mm BGA) Internal Power Switch Buck 2.22mm (7.5mm × 6.25mm × 2.22mm BGA) Matte Tin no no
LT1766 1 5.5 60 1.2 1.2 no Fixed Output of 5V Available SSOP-16,TSSOP-16 200 2.5 Fixed Output, External Synchronization 25 54 2 228kHz - 700kHz E,I,H Constant Frequency Current Mode 2 no Buck, Inverting yes - - LTspice File DC326B,DC326C no no 2001-05-02 $3.65 (LT1766EGN-5) 30.9mm² (SSOP-16),32.6mm² (TSSOP-16) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 1.1mm (TSSOP-16),1.75mm (SSOP-16) Lead,Matte Tin no yes
LT1956 1 5.5 60 1.2 1.2 no Fixed Output of 5V Available SSOP-16,TSSOP-16 500 2.5 Fixed Output, External Synchronization 25 45 2 580kHz - 700kHz E,I Constant Frequency Current Mode 2 no Buck, Inverting yes - - LTspice Model DC423B no no 2002-06-10 $3.65 (LT1956EGN-5) 30.9mm² (SSOP-16),32.6mm² (TSSOP-16) High Input Voltage Buck,Internal Power Switch Buck 1.1mm (TSSOP-16),1.75mm (SSOP-16) Lead,Matte Tin no yes
LT1374 1 5 25 3.6 2.42 no DDPAK-7,SO-8,TO-220,TSSOP-16 500 2.5 External Synchronization 20 21.5 580kHz - 1MHz C,I Constant Frequency Current Mode 6 no Buck yes - - LTspice File DC187A-A,DC187A-B,DC188A-A,DC188A-B,DC474A no no 1998-02-20 $4.40 (LT1374CS8-5) 31mm² (SO-8),32.6mm² (TSSOP-16),99.1mm² (DDPAK-7),165.9mm² (TO-220) Internal Power Switch Buck,SEPIC Regulators 1.1mm (TSSOP-16),1.75mm (SO-8),4.57mm (DDPAK-7),4.57mm (TO-220) Lead,Matte Tin no yes
LT1374HV 1 5 32 3.6 2.42 no HV Vin Up To 32V DDPAK-7,SO-8,TSSOP-16 500 2.5 External Synchronization 20 27.52 580kHz - 1MHz C,I Constant Frequency Current Mode 6 no Buck yes - - LTspice File DC187A-A,DC187A-B,DC188A-A,DC188A-B,DC474A no no 1998-02-20 $4.85 (LT1374HVCS8) 31mm² (SO-8),32.6mm² (TSSOP-16),99.1mm² (DDPAK-7) Internal Power Switch Buck,SEPIC Regulators 1.1mm (TSSOP-16),1.75mm (SO-8),4.57mm (DDPAK-7) Lead,Matte Tin no yes
LT1375 1 5 25 1.2 2.42 no N-8,SO-8 500 2.5 External Synchronization 20 21.5 2.5 580kHz - 900kHz C,I Constant Frequency Current Mode 2 no Buck yes - - LTspice File DC084B-A,DC084B-B no no 1995-04-14 $3.20 (LT1375CS8) 31mm² (SO-8),65.7mm² (N-8) Internal Power Switch Buck,SEPIC Regulators 1.75mm (SO-8),3.3mm (N-8) Lead,Matte Tin no no
LT1375HV 1 5 30 1.2 2.42 no HV Vin Up To 30V SO-8 500 2.5 External Synchronization 20 25.8 2.5 580kHz - 900kHz C,I Constant Frequency Current Mode 2 no Buck yes - - LTspice File DC084B-A,DC084B-B no no 1995-04-14 $3.50 (LT1375HVCS8) 31mm² (SO-8) Internal Power Switch Buck,SEPIC Regulators 1.75mm (SO-8) Lead,Matte Tin no no
LTC3649 1 3.1 60 4 0 yes 60V, 4A Synchronous Step-Down with Rail-to-Rail Programmable Output 4x5 QFN-28,TSSOP-28 3000 0.44 Burst Mode, Power Good, PolyPhase, Current Source Reference, Output Current Monitor, Resistor Set Frequency, External Synchronization 18 59.5 0.8 300kHz - 3MHz 300kHz - 3MHz E,I Peak Current Mode 6 no Buck yes Buck LTspice File,LTpowerCAD File DC2113A no yes 2015-12-18 $5.65 (LTC3649EUFD) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) High Input Voltage Buck,Internal Power Switch Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no no
LT1765 1 3 25 2.4 1.2 no SO-8,TSSOP-16 1250 1 Fixed Output, External Synchronization 15 20 1.6MHz - 2MHz E Constant Frequency Current Mode 4 no Buck, Inverting yes - - LTspice File DC436A,DC476A no no 2001-09-19 $4.67 (LT1765ES8) 31mm² (SO-8),32.6mm² (TSSOP-16) Internal Power Switch Buck 1.1mm (TSSOP-16),1.75mm (SO-8) Lead,Matte Tin no no
LT1959 1 4 15 3.6 1.21 no DDPAK-7,SO-8 500 3.8 External Synchronization 15 12.9 580kHz - 1MHz C,I Constant Frequency Current Mode 6 no Buck yes - - LTspice Model DC355A,DC356A no no 2000-04-10 $4.39 (LT1959CS8) 31mm² (SO-8),99.1mm² (DDPAK-7) Internal Power Switch Buck 1.75mm (SO-8),4.57mm (DDPAK-7) Lead,Matte Tin no no
LTC1265 1 4 13 0.96 1.25 no Fixed Outputs of 3.3V, 5V Available SO-14 700 1.8 Burst Mode 15 13 4 C,I Constant Off-Time Current Mode 1.2 no Buck, Inverting yes - - LTspice Model DC074A-A,DC074A-B,DC074A-C no no 1995-04-14 $3.75 (LTC1265CS-5) 54.1mm² (SO-14) Internal Power Switch Buck 1.75mm (SO-14) Lead,Matte Tin no no
LTC1627 1 2.65 8.5 0.64 0.8 yes Synchronous, 100% Duty Cycle SO-8 350 0.2 Burst Mode, External Synchronization, 100% Duty Cycle 15 8.5 1.5 Up to 525kHz C,I Constant Frequency Current Mode 0.8 no Buck yes - - LTspice Model DC195A no no 1998-08-31 $2.05 (LTC1627CS8) 31mm² (SO-8) Internal Power Switch Buck 1.75mm (SO-8) Lead,Matte Tin no no
LTC3371 4 2.7 5.5 2 0.8 yes 4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset 5x7 QFN-38,TSSOP-38 2000 0.05 Burst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor, Watchdog Timer 15 5.45 2.5 1MHz - 3MHz 1MHz - 3MHz E,I,H Constant Frequency Current Mode 4.6 no Buck yes Buck Buck 2 0.8 5.45 Buck 2 0.8 5.45 Buck 2 - DC2182A no no 2014-12-02 $4.15 (LTC3371EUHF) 35mm² (5x7 QFN-38),62.7mm² (TSSOP-38) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Multiple Output Buck 0.75mm (5x7 QFN-38),1.2mm (TSSOP-38) Matte Tin no no
LTC3608 1 4 18 8 0.6 yes 18V, 8A Monolithic Synchronous Step-Down DC/DC Converter 7x8 QFN-52 0.9 Power Good 15 17.82 E,I Constant On-Time Current Mode 16 no Buck yes - - LTspice File,LTpowerCAD Model DC1320A-A no no 2008-07-22 $7.50 (LTC3608EWKG) 56mm² (7x8 QFN-52) Internal Power Switch Buck 0.75mm (7x8 QFN-52) Matte Tin no yes
LTC3609 1 4 32 6 0.6 yes 32V, 6A Monolithic Synchronous Step-Down DC/DC Converter 7x8 QFN-52 0.9 Power Good 15 36 E,I Constant On-Time Current Mode 14 no Buck yes - - LTspice File,LTpowerCAD Model DC1320A-B no no 2008-12-17 $7.75 (LTC3609EWKG) 56mm² (7x8 QFN-52) Internal Power Switch Buck 0.75mm (7x8 QFN-52) Matte Tin no no
LTC3610 1 4 28 12 0.6 yes 12A, 24V Monolithic Synchronous Step-Down DC/DC Converter 9x9 QFN-64 2000 0.9 Power Good, Resistor Set Frequency 15 24 Up to 2MHz E,I Constant On-Time Valley Current Mode 16 no Buck yes - - LTspice File,LTpowerCAD Model DC1129A no no 2007-07-30 $8.50 (LTC3610EWP) 81mm² (9x9 QFN-64) Internal Power Switch Buck 0.75mm (9x9 QFN-64) Matte Tin no yes
LTC3611 1 4.5 32 10 0.6 yes 10A, 32V Monolithic Synchronous Step-Down DC/DC Converter 9x9 QFN-64 1000 0.9 Power Good, Resistor Set Frequency 15 32 100Hz - 1MHz E,I Constant On-Time Valley Current Mode 15 no Buck yes - - LTspice File,LTpowerCAD Model DC1318A no no 2008-02-04 $9.75 (LTC3611EWP) 81mm² (9x9 QFN-64) Internal Power Switch Buck 0.75mm (9x9 QFN-64) Lead,Matte Tin no no
LTC3613 1 4.5 24 15 0.6 yes 24V, 15A Monolithic Step Down Regulator with Differential Output Sensing 7x9 QFN-56 1000 2 External Synchronization, Resistor Set Frequency, Differential Remote Sense, Power Good, Tracking 15 5.5 200kHz - 1MHz 200kHz - 1MHz E,I Controlled On-Time Valley Current Mode 25 no Buck yes - - LTspice File,LTpowerCAD File DC1700A yes no 2011-12-01 $9.75 (LTC3613EWKH) 63mm² (7x9 QFN-56) Internal Power Switch Buck 0.75mm (7x9 QFN-56) Matte Tin no yes
LT1376 1 5 25 1.5 2.42 no N-8,SO-16,SO-8 500 2.5 External Synchronization 14 20.64 580kHz - 900kHz C,I Constant Frequency Current Mode 2 no Buck yes - - LTspice File - no no 1995-04-14 $3.20 (LT1376CS8) 31mm² (SO-8),62mm² (SO-16),65.7mm² (N-8) Internal Power Switch Buck 1.75mm (SO-8),1.75mm (SO-16),3.3mm (N-8) Lead,Matte Tin no no
LT1376HV 1 5 30 1.5 2.42 no HV Vin Up To 60V SO-16,SO-8 500 2.5 External Synchronization 14 25.8 580kHz - 900kHz C,I Constant Frequency Current Mode 2 no Buck yes - - LTspice File - no no 1995-04-14 $3.50 (LT1376HVCS8) 31mm² (SO-8),62mm² (SO-16) Internal Power Switch Buck 1.75mm (SO-8),1.75mm (SO-16) Lead,Matte Tin no no
LTC3601 1 4 15 1.5 0.6 yes 1.5A, 15V Monolithic Synchronous Step-Down Regulator 3x3 QFN-16,MS-16E 4000 0.3 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 14 14.52 800kHz - 4MHz 800kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 2.2 no Buck yes - - LTspice File,LTpowerCAD File DC1353A,DC1454A no no 2009-07-29 $2.30 (LTC3601EMSE) 9mm² (3x3 QFN-16),19.8mm² (MS-16E) Internal Power Switch Buck 0.75mm (3x3 QFN-16),1.1mm (MS-16E) Matte Tin no yes
LTC3604 1 3.6 15 2.5 0.6 yes 2.5A, 15V Monolithic Synchronous Step-Down Regulator 3x3 QFN-16,MS-16E 4000 0.3 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 14 14.52 800kHz - 4MHz 800kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 3.4 no Buck yes - - LTspice File,LTpowerCAD File DC1610A,DC1611A no no 2010-01-21 $3.25 (LTC3604EMSE) 9mm² (3x3 QFN-16),19.8mm² (MS-16E) Internal Power Switch Buck 0.75mm (3x3 QFN-16),1.1mm (MS-16E) Matte Tin no yes
LTC3626 1 3.6 20 2.5 0.6 yes Current and Temperature Monitoring 3x4 QFN-20 3000 0.9 Programmable Input Current Limit, Temperature Monitor, External Synchronization, Resistor Set Frequency, Tracking, Burst Mode, Power Good 13 6 500kHz - 3MHz 500kHz - 3MHz E,I Constant Frequency Controlled On-Time Current Mode 2.9 no Buck yes - - LTspice File,LTpowerCAD File DC1768A yes no 2012-07-02 $3.45 (LTC3626EUDC) 12mm² (3x4 QFN-20) Internal Power Switch Buck 0.75mm (3x4 QFN-20) Matte Tin no no
LTC3633 2 3.6 15 3 0.6 yes Dual 3A Buck, 3.6V to 15V Input Voltage 4x5 QFN-28,TSSOP-28 4000 0.5 Anti-Phase Switching, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 13 14.7 1 500kHz - 4MHz 500kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 3.5 no Buck yes Buck Buck 3 0.6 - LTspice File,LTpowerCAD File DC1347B no no 2010-01-27 $4.25 (LTC3633EUFD) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Lead,Matte Tin no no
LTC3633A 2 3.6 20 3 0.6 yes Dual 3A Buck, 3.6V to 20Vin, Vout Sense 0.6V to 6V, V2P5 Output 4x5 QFN-28,TSSOP-28 4000 0.5 Anti-Phase Switching, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 13 6 1 500kHz - 4MHz 500kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 3.5 no Buck yes Buck Buck 3 0.6 - LTspice File,LTpowerCAD File DC1895A no no 2012-09-25 $4.25 (LTC3633AEUFD) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no no
LTC3633A-1 2 3.6 20 3 1.5 yes Dual 3A Buck, 3.6V to 20Vin, Vout Sense 1.5V to 12V, V2P5 Output 4x5 QFN-28,TSSOP-28 4000 0.5 Anti-Phase Switching, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 13 12 1 500kHz - 4MHz 500kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 3.5 no Buck yes Buck Buck 3 1.5 - LTspice File,LTpowerCAD File DC1895A no no 2012-09-25 $4.25 (LTC3633AEUFD-1) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no no
LTC3633A-2 2 3.6 20 3 0.6 yes Dual 3A Buck, 3.6V to 20Vin, Vout Sense 0.6V to 6V, SVin Pin 4x5 QFN-28,TSSOP-28 4000 0.5 Anti-Phase Switching, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 13 6 1 500kHz - 4MHz 500kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 3.5 no Buck yes Buck Buck 3 0.6 - LTspice File,LTpowerCAD File DC1896A no no 2012-09-28 $4.25 (LTC3633AEUFD-2) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no no
LTC3633A-3 2 3.6 20 3 1.5 yes Dual 3A Buck, 3.6V to 20Vin, Vout Sense 1.5V to 12V, SVin Pin 4x5 QFN-28,TSSOP-28 4000 0.5 Anti-Phase Switching, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 13 12 1 500kHz - 4MHz 500kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 3.5 no Buck yes Buck Buck 3 1.5 - LTspice File,LTpowerCAD File DC1896A no no 2012-09-28 $4.25 (LTC3633AEUFD-3) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no no
LT1777 1 7 48 0.44 1.24 no Programmable di/dt Limit for Low Noise Applications SO-16 100 0.62 Low EMI, Adjustable Slew Rate, External Synchronization 12 30 1.2 130kHz - 250kHz C,I Constant Frequency Current Mode 0.7 no Buck yes - - LTspice Model DC242A no no 1999-02-25 $2.65 (LT1777CS) 62mm² (SO-16) High Input Voltage Buck,Internal Power Switch Buck,Ultralow Noise Regulators 1.75mm (SO-16) Lead,Matte Tin no no
LT1939 2 3 25 2 0.8 no 2A, 25V Step-Down with LDO Controller 3x3 DFN-12 2200 2.5 LDO, Tracking, Resistor Set Frequency, External Synchronization, Power Good 12 24.25 250kHz to 2.2MHz 250kHz to 2.2MHz E,I Constant Frequency Current Mode 2.8 no Buck, LDO yes Buck LDO 1 0.8 24.2 - LTspice File,LTpowerCAD Model DC1293A no no 2008-01-08 $3.05 (LT1939EDD) 9mm² (3x3 DFN-12) Buck Regulator Plus LDO,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (3x3 DFN-12) Matte Tin no yes
LT3500 2 3 36 2 0.8 no 2A, 36V Step-Down with LDO Controller 3x3 DFN-12,MS-16E 2200 2.5 External Synchronization, Resistor Set Frequency, Power Good, LDO 12 34.92 250kHz - 2.2MHz 250kHz - 2.2MHz E,I,H Constant Frequency Current Mode 2.8 no Buck, LDO yes Buck LDO 1 0.8 36 - LTspice File,LTpowerCAD Model DC1069A no no 2007-10-12 $3.25 (LT3500EDD) 9mm² (3x3 DFN-12),19.8mm² (MS-16E) Buck Regulator Plus LDO,Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (3x3 DFN-12),1.1mm (MS-16E) Matte Tin no yes
LT3973 1 4.2 42 0.75 1.21 no Integrated Catch & Boost Diodes 3x3 DFN-10,MS-10E 2200 0.0025 Burst Mode, Resistor Set Frequency, Power Good 12 24 2 200kHz to 2.2MHz E,I,H Constant Frequency Current Mode 1.65 no Buck yes - - LTspice File,LTpowerCAD Model DC1730A no no 2011-10-12 $2.75 (LT3973EDD-3.3) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LTC1707 1 2.9 8.5 0.6 0.8 yes Synchronous, 100% Duty Cycle, 96% Efficiency SO-8 350 0.2 External Synchronization 11 8.5 2.5 385kHz - 550kHz C,I Constant Frequency Current Mode 0.915 no Buck yes Buck - - LTspice Model DC257A no no 2000-02-07 $2.05 (LTC1707CS8) 31mm² (SO-8) Internal Power Switch Buck 1.75mm (SO-8) Lead,Matte Tin no no
LTC3605 1 4 15 5 0.6 yes 15V, 5A Synchronous Step-Down Regulator 4x4 QFN-24 4000 2 PolyPhase, Resistor Set Frequency, External Synchronization, Tracking 11 14.85 800kHz - 4MHz 800kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 6 no Buck yes - - LTspice File,LTpowerCAD File DC1215A no no 2009-01-19 $4.25 (LTC3605EUF) 16mm² (4x4 QFN-24) Internal Power Switch Buck 0.75mm (4x4 QFN-24) Matte Tin no no
LTC3605A 1 4 20 5 0.6 yes 20V, 5A Synchronous Step-Down Regulator 4x4 QFN-24 4000 1.5 Resistor Set Frequency, PolyPhase, Tracking, External Synchronization, Power Good 11 19.8 800kHz - 4MHz 800kHz - 4MHz E,I Constant Frequency Controlled On-Time Current Mode 6 no Buck yes - - LTspice File,LTpowerCAD File DC1897B no no 2012-05-22 $4.25 (LTC3605AEUF) 16mm² (4x4 QFN-24) Internal Power Switch Buck 0.75mm (4x4 QFN-24) Matte Tin no no
LT3501 2 3.3 25 3 0.8 no Dual 3A Buck TSSOP-20 1500 3.5 Anti-Phase Switching, Tracking, Power Good, Resistor Set Frequency, External Synchronization 9 23.75 250kHz - 1.5MHz 250kHz - 1.5MHz E,I Constant Frequency Current Mode 4 no Buck yes Buck Buck 3 1.25 - LTspice File,LTpowerCAD Model DC964A no no 2006-10-20 $3.50 (LT3501EFE) 42.2mm² (TSSOP-20) Internal Power Switch Buck,Multiple Output Buck 1.2mm (TSSOP-20) Lead,Matte Tin no yes
LT3509 2 3.6 36 0.7 0.8 no Dual 36V, 700mA Step-Down Regulator 4x3 DFN-14,MS-16E 2200 1.9 Overvoltage Protection, Resistor Set Frequency, External Synchronization 9 35.28 2 300kHz - 2.2MHz 300kHz - 2.2MHz E,I,H Constant Frequency Current Mode 1.4 no Buck yes Buck Buck 0.7 0.8 - LTspice File,LTpowerCAD Model DC1248A no no 2009-01-08 $2.95 (LT3509EDE) 12mm² (4x3 DFN-14),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Matte Tin no yes
LT3510 2 3.3 25 2 0.8 no Dual Tracking 2A Buck TSSOP-20 1500 3.5 Anti-Phase Switching, Tracking, Power Good, Resistor Set Frequency, External Synchronization 9 23.75 250kHz - 1.5MHz 250kHz - 1.5MHz E,I Constant Frequency Current Mode 2.8 no Buck yes Buck Buck 2 .8 - LTspice File,LTpowerCAD Model DC1157A no no 2006-10-20 $3.25 (LT3510EFE) 42.2mm² (TSSOP-20) Internal Power Switch Buck,Multiple Output Buck 1.2mm (TSSOP-20) Lead,Matte Tin no yes
LT3697 1 5 35 2.5 5 no USB 5V, 2.5A Output, 35V Input Buck with Cable Drop Compensation MS-16E 2200 0.3 Cable Drop Compensation, Burst Mode, Resistor Set Frequency, External Synchronization 9 6.1 0.8 300kHz - 2.2MHz 300kHz - 2.2MHz E,I Constant Frequency Current Mode 5.3 no Buck yes LTspice File DC1893A no no 2014-09-23 $2.75 (LT3697EMSE) 19.8mm² (MS-16E) Cable Drop Compensation,Internal Power Switch Buck 1.1mm (MS-16E) Matte Tin no no
LTC1779 1 2.5 9.8 0.25 0.8 no 100% Duty Cycle SOT-23 550 0.135 Burst Mode, 100% Duty Cycle 8 9.8 2.5 E Constant Frequency Current Mode 0.5 no Buck yes - - LTspice Model DC419A no no 2000-12-11 $1.96 (LTC1779ES6) 8.1mm² (SOT-23) Internal Power Switch Buck 1mm (SOT-23) Lead,Matte Tin no no
LTC3374 8 2.25 5.5 1 0.8 yes 8-Channel Parallelable 1A Buck DC/DCs 5x7 QFN-38,TSSOP-38 2000 0.2 Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization, Temperature Monitor 8 5.5 2.5 1MHz - 3MHz 1MHz - 3MHz E,I,H Constant Frequency Current Mode 2.3 no Buck yes Buck Buck 1 0.8 5.5 Buck 1 0.8 5.5 Buck 1 LTspice Model DC1953A no no 2013-05-10 $4.65 (LTC3374EUHF) 35mm² (5x7 QFN-38),62.7mm² (TSSOP-38) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (5x7 QFN-38),1.2mm (TSSOP-38) Matte Tin,Lead no yes
LTC3646 1 4 40 1 2 yes LTC3646 Vout 2.0V to 30V 4x3 DFN-14,MS-16E 3000 0.140 Resistor Set Frequency, External Synchronization, Burst Mode, Power Good 8 30 1.5 200kHz - 3MHz 200kHz - 3MHz E,I,H Constant Frequency Controlled On-Time Current Mode 1.2 no Buck yes - - LTspice File,LTpowerCAD File DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B yes no 2012-12-18 $2.85 (LTC3646EDE) 12mm² (4x3 DFN-14),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Lead,Matte Tin no yes
LTC3646-1 1 4 40 1 0.6 yes LTC3646-1 Vout 0.6V to 15V 4x3 DFN-14,MS-16E 3000 0.140 Resistor Set Frequency, External Synchronization, Burst Mode, Power Good 8 15 1.5 200kHz - 3MHz 200kHz - 3MHz E,I,H Constant Frequency Controlled On-Time Current Mode 1.2 no Buck yes - - LTspice File,LTpowerCAD File DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B yes no 2012-12-18 $2.85 (LTC3646EDE-1) 12mm² (4x3 DFN-14),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Matte Tin no yes
LT1767 1 3 25 1.2 1.2 no Fixed Outputs of 1.8V, 2.5V, 3.3V, 5V available MS-8 1250 1 Fixed Output, External Synchronization 6 20 2 1.4MHz - 2MHz E Constant Frequency Current Mode 2 no Buck yes LTspice File DC502A no no 2000-10-26 $2.95 (LT1767EMS8-3.3) 14.7mm² (MS-8) Internal Power Switch Buck 1.1mm (MS-8) Lead,Matte Tin no no
LT3692A 2 3 36 3.5 0.8 no LT3692A Offers Lower tON(MIN), Prog. UVLO, TSSOP-38E Package 5x5 QFN-32,TSSOP-38 2250 4 Resistor Set Frequency, External Synchronization, Anti-Phase Switching, Tracking, Power Good 6 34.2 250kHz - 2.25MHz 250kHz - 2.25MHz E,I,H Constant Frequency Current Mode 4.6 no Buck yes Buck Buck 3.5 0.8 - LTspice File,LTpowerCAD Model DC1403A no no 2011-07-15 $4.25 (LT3692AEUH) 25mm² (5x5 QFN-32),62.7mm² (TSSOP-38) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 0.75mm (5x5 QFN-32),1.2mm (TSSOP-38) Matte Tin no yes
LT3992 2 3 60 3 0.8 no Dual Tracking 3A Buck, Antiphase Switching, Parallelable 5x5 QFN-32,TSSOP-38 2000 4.2 Power Good, Temperature Monitor, External Synchronization, Resistor Set Frequency, Anti-Phase Switching, Tracking 6 58.8 2.23 250kHz - 2MHz 250kHz - 2MHz E,I,H Constant Frequency Current Mode 4.6 no Buck yes Buck Buck 3 0.8 - LTspice File,LTpowerCAD Model DC1537A no no 2012-03-19 $4.65 (LT3992EUH) 25mm² (5x5 QFN-32),62.7mm² (TSSOP-38) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 0.75mm (5x5 QFN-32),1.2mm (TSSOP-38) Matte Tin no yes
LTC3445 3 2.5 5.5 0.6 0.85 yes I2C Controllable 600mA Buck with Two 50mA LDOs 4x4 QFN-24 1500 0.22 I2C Control, LDO, Adjustable Slew Rate, Spread Spectrum, PowerPath 6 1.55 2.9 E Constant Frequency Current Mode 1 no Buck, LDO, LDO yes Buck LDO 0.05 0.85 5 LDO 0.05 0.85 5 - DC698A no no 2004-12-06 $2.45 (LTC3445EUF) 16mm² (4x4 QFN-24) Buck Regulator Plus LDO,Digitally Programmable Regulators,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (4x4 QFN-24) Matte Tin no no
LT8630 1 3 100 0.6 0.8 yes 100V, 0.6A Synchronous Micropower Buck High Efficiency Regulator TSSOP-20 0.016 Burst Mode, Power Good 5 60 1.5 E,I Boundary Mode Control 1.1 no Buck yes LTspice File DC2504A no yes 2016-10-27 $3.60 (LT8630EFE) 42.2mm² (TSSOP-20) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.2mm (TSSOP-20) Matte Tin no no
LT8631 1 3 100 1 0.808 yes 100V, 1A Synchronous Micropower Step-Down Regulator TSSOP-20 1000 0.0036 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 5 60 1.48 100kHz to 1MHz 100kHz to 1MHz E,I,H Constant Frequency Current Mode 2.1 no Buck yes Buck 0.8 LTspice File,LTpowerCAD File DC2110A yes yes 2015-07-13 $3.60 (LT8631EFE) 42.2mm² (TSSOP-20) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.2mm (TSSOP-20) Matte Tin no yes
LTC3630 1 4 65 0.5 0.8 yes 65V 500mA Step-Down Converter, Prog 1.8V/3.3V/5V/Adj VOUT 5x3 DFN-16,MS-16E 0.012 Burst Mode, 100% Duty Cycle 5 65 1 E,I,H,MP Hysteretic Mode Control 1.2 no Buck yes - - LTspice File DC2105A-B no no 2012-05-09 $3.20 (LTC3630EDHC) 15mm² (5x3 DFN-16),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (5x3 DFN-16),1.1mm (MS-16E) Matte Tin no yes
LTC3630A 1 4 76 0.5 0.8 yes 76V 500mA Step-Down Converter, Prog 1.8V/3.3V/5V/Adj VOUT 5x3 DFN-16,MS-16E 0.012 100% Duty Cycle, Burst Mode, Fixed Output 5 76 1 E,I,H,MP Hysteretic Mode Control 1.2 no Buck yes - - LTspice File DC2105A-A,DC1877A no no 2013-05-29 $3.30 (LTC3630AEDHC) 15mm² (5x3 DFN-16),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (5x3 DFN-16),1.1mm (MS-16E) Matte Tin no yes
LTC3631 1 4.5 45 0.1 0.8 yes 60V Transient Protection, 100% Duty Cycle 3x3 DFN-8,MS-8 0.012 Burst Mode, 100% Duty Cycle 3 45 1 E,I Variable Frequency Current Mode 0.225 no Buck yes - - LTspice File DC1499A no no 2009-04-28 $2.95 (LTC3631EMS8E-5) 9mm² (3x3 DFN-8),14.7mm² (MS-8) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-8),1.1mm (MS-8) Matte Tin no yes
LTC3632 1 4.5 50 0.02 0.8 yes 60V Transient Protection, 100% Duty Cycle 3x3 DFN-8,MS-8 0.012 Burst Mode, Overvoltage Protection, 100% Duty Cycle 3 50 1 E,I Variable Frequency Current Mode 0.05 no Buck yes - - LTspice File DC1507A no no 2009-05-08 $2.45 (LTC3632EDD) 9mm² (3x3 DFN-8),14.7mm² (MS-8) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-8),1.1mm (MS-8) Matte Tin no yes
LTC3637 1 4 76 1 0.8 no 100% Duty Cycle 5x3 DFN-16,MS-16E 0.012 Burst Mode, 100% Duty Cycle, Programmable Output Current Limit 3 76 1 E,I,H,MP Hysteretic Mode Control 2.4 no Buck yes - - LTspice Model DC2056A no no 2013-12-20 $3.20 (LTC3637EDHC) 15mm² (5x3 DFN-16),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (5x3 DFN-16),1.1mm (MS-16E) Matte Tin no no
LTC3642 1 4.5 45 0.05 0.8 yes 60V Transient Protection, 3.3V, 5V or Adj VOUT 3x3 DFN-8,MS-8 0.012 Burst Mode, 100% Duty Cycle 3 45 1 E,I Variable Frequency Current Mode 0.115 no Buck yes - - LTspice File DC1429A no no 2008-11-03 $2.65 (LTC3642EMS8E-5) 9mm² (3x3 DFN-8),14.7mm² (MS-8) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-8),1.1mm (MS-8) Matte Tin no yes
LT1676 1 7.4 60 0.44 1.24 no N-8,SO-8 100 3.2 External Synchronization 2.5 51 1.2 100kHz - 250kHz C,I Constant Frequency Current Mode 0.7 no Buck yes - - LTspice Model DC204A-A no no 1998-08-28 $2.60 (LT1676CN8) 31mm² (SO-8),65.7mm² (N-8) High Input Voltage Buck,Internal Power Switch Buck 1.75mm (SO-8),3.3mm (N-8) Lead,Matte Tin no yes
LTC3370 4 2.25 5.5 2 0.8 yes 4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset 5x5 QFN-32 3000 0.045 Burst Mode, Resistor Set Frequency, External Synchronization, Temperature Monitor 2.5 5.45 2.5 1MHz - 3MHz 1MHz - 3MHz E,I,H Constant Frequency Current Mode 4.6 no Buck yes Buck Buck 2 0.8 5.45 Buck 2 0.8 5.45 Buck 2 - DC2311A yes no 2015-02-11 $3.80 (LTC3370EUH) 25mm² (5x5 QFN-32) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Multiple Output Buck 0.75mm (5x5 QFN-32) Matte Tin no no
LT8616 2 3.4 42 2.5 0.79 yes Dual 2.5A/1.5A 42V Synchronous Monolithic Step-Down with 6.5μA Iq 3x6 QFN-28,TSSOP-28 3000 0.003 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 1.7 41.8 1 200kHz - 3MHz 200kHz - 3MHz E,I,H Constant Frequency Current Mode 5.5 no Buck yes Buck Buck 1.5 0.79 41.8 LTspice File,LTpowerCAD File DC2169A yes yes 2015-04-13 $4.15 (LT8616EUDE) 18mm² (3x6 QFN-28),62.7mm² (TSSOP-28) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x6 QFN-28),1.2mm (TSSOP-28) Matte Tin no yes
LTC3638 1 4 140 0.25 0.8 no 100% Duty Cycle MS-16E 0.012 Burst Mode, 100% Duty Cycle, Pin Selectable Output Voltage 1.4 140 1 E,I,H,MP Hysteretic Mode Control 0.575 no Buck yes Buck - - LTspice File DC2057A no no 2014-01-15 $3.65 (LTC3638EMSE) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no no
LTC3639 1 4 150 0.1 0.8 yes 100% Duty Cycle, Pin-Strapped Fixed 1.8V/3.3V/5V or Adj VOUT MS-16E 0.012 Burst Mode, Fixed Output, 100% Duty Cycle 1.4 150 1 E,I,H,MP Hysteretic Mode Control 0.23 no Buck yes - - LTspice File DC1901A yes no 2013-04-15 $3.65 (LTC3639EMSE) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no yes
LTC7138 1 4 140 0.4 0.8 no High Efficiency, 140V 400mA Step-Down Regulator MS-16E 0.012 Burst Mode, Programmable Output Current Limit, 100% Duty Cycle, Fixed Output 1.4 140 1 E,I,H,MP Hysteretic Mode Control 0.610 no Buck yes Buck LTspice File DC2172A yes no 2015-01-09 $3.80 (LTC7138EMSE) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no yes
LT1912 1 3.6 36 2 0.79 no 3x3 DFN-10,MS-10E 500 0.9 Integrated Boost Diode, External Synchronization, Resistor Set Frequency 1.3 20 200kHz - 500kHz 250kHz - 500kHz E Constant Frequency Current Mode 3.7 no Buck yes - - LTspice File,LTpowerCAD Model DC1313A no no 2008-01-07 $2.95 (LT1912EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no no
LT3685 1 3.6 36 2 0.79 no 60V Transient Protection 3x3 DFN-10,MS-10E 2400 0.45 Resistor Set Frequency, External Synchronization, Power Good 1.3 20 1.9 200kHz - 2.4MHz 250kHz - 2MHz E,I Constant Frequency Current Mode 3.7 no Buck yes - - LTspice File,LTpowerCAD Model DC1167A,DC1212A-B no no 2007-06-14 $3.05 (LT3685EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) High Input Voltage Buck,Internal Power Switch Buck 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT1076-5 1 7.3 45 1.6 5 no Programmable Current Limit, -5 Fixed 5Vout DDPAK-5,DDPAK-7,TO-220 100 8.5 Fixed Output 1 5 C,I Constant Frequency Current Mode 2.6 no Buck yes - - LTspice Model - no no 1992-11-19 $3.40 (LT1076CT-5) 99.1mm² (DDPAK-7),99.1mm² (DDPAK-5),165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) High Input Voltage Buck,Internal Power Switch Buck 4.57mm (TO-220),4.57mm (TO-220),4.57mm (DDPAK-7),4.57mm (TO-220),4.57mm (DDPAK-5) Lead,Matte Tin no no
LT1616 1 3.6 25 0.6 1.25 no Circuit Footprint = 50mm2 SOT-23 1400 1.9 - 1 20 2 E Constant Frequency Current Mode 0.85 no Buck yes - - LTspice File - no no 2000-09-14 $2.01 (LT1616ES6) 8.1mm² (SOT-23) Internal Power Switch Buck 1mm (SOT-23) Lead,Matte Tin no no
LT1933 1 3.6 36 0.6 1.245 no 600mA, 500kHz Step-Down Switching Regulator in SOT-23 2x3 DFN-6,SOT-23 500 1.6 - 1 31.68 1.6 E,I,H Constant Frequency Current Mode 1.05 no Buck yes - - LTspice File DC1092A,DC662A no no 2004-08-14 $1.95 (LT1933ES6) 6mm² (2x3 DFN-6),8.1mm² (SOT-23) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck 0.75mm (2x3 DFN-6),1mm (SOT-23) Lead,Matte Tin no yes
LT1976 1 3.3 60 1.24 1.2 no 100µA IQ, 200kHz Switching, /B Disables Burst Mode TSSOP-16 200 0.1 Burst Mode, External Synchronization 1 54 2 230kHz - 600kHz E,I,H Constant Frequency Current Mode 2.4 no Buck yes - - LTspice File DC481A,DC977A no no 2003-08-15 $3.50 (LT1976BEFE) 32.6mm² (TSSOP-16) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3434 1 3.3 60 2.4 1.25 no 100µA Quiescent Current TSSOP-16 200 0.1 Burst Mode, External Synchronization 1 54 230kHz - 500kHz E,I Constant Frequency Current Mode 4.7 no Buck yes - - LTspice Model,LTpowerCAD Model DC614A no no 2004-08-13 $5.25 (LT3434EFE) 32.6mm² (TSSOP-16) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3480 1 3.6 36 2 0.79 no Transient Protection to 60V, Low Ripple Burst Mode 3x3 DFN-10,MS-10E 2400 0.07 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 1 20 200kHz - 2.4MHz 250kHz - 2MHz E,I,H,MP Constant Frequency Current Mode 3.5 no Buck yes - - LTspice File,LTpowerCAD Model DC1091A,DC1212A-A,DC1394A no no 2007-03-06 $3.45 (LT3480EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin,Lead no yes
LT3507 4 4 36 2.4 0.8 no Triple Step-Down (2.4A & Two 1.5A), LDO Controller 5x7 QFN-38 2500 2 LDO, Tracking, Power Good, Resistor Set Frequency, External Synchronization 1 32.4 250kHz - 2.5MHz 250kHz - 2.5MHz E,I,H Constant Frequency Current Mode 4.3 no Buck, LDO yes Buck Buck 1.5 0.8 32.4 Buck 1.5 0.8 32.4 LDO 1 LTspice File,LTpowerCAD Model DC1161B no no 2008-04-11 $4.25 (LT3507EUHF) 35mm² (5x7 QFN-38) Buck Regulator Plus LDO,Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Multiple Output Buck,Multitopology DC/DC 0.75mm (5x7 QFN-38) Matte Tin no yes
LT3507A 4 4 36 2.7 0.8 no Triple Step-Down (2.7A & Two 1.8A), LDO, Improved Iout 5x7 QFN-38,TSSOP-38 2500 5 Anti-Phase Switching, Resistor Set Frequency, External Synchronization, Tracking, LDO 1 32.4 250kHz - 2.5MHz 250kHz - 2.5MHz E,I,H Constant Frequency Current Mode 4.3 no Buck, LDO yes Buck Buck 1.8 0.6 32.4 Buck 1.8 0.6 32.4 LDO 1 LTspice File,LTpowerCAD Model DC1781A no no 2011-06-27 $4.25 (LT3507AEUHF) 35mm² (5x7 QFN-38),62.7mm² (TSSOP-38) Buck Regulator Plus LDO,Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Multiple Output Buck,Multitopology DC/DC 0.75mm (5x7 QFN-38),1.2mm (TSSOP-38) Matte Tin no yes
LT3668 3 4.3 40 0.4 1.2 no 40V 400mA Step-Down Switching Reg. with Dual Tracking LDOs MS-16E 2200 0.050 Burst Mode, Tracking, Resistor Set Frequency, Power Good 1 39.4 2 250kHz - 2.2MHz E,I,H Constant Frequency Current Mode 0.75 no Buck, LDO yes Buck LDO 0.2 1 10 LDO 0.2 1 10 LTspice Model DC2243A no no 2014-10-07 $2.55 (LT3668EMSE) 19.8mm² (MS-16E) Buck Regulator Plus LDO,Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Multitopology DC/DC 1.1mm (MS-16E) Matte Tin no no
LT3680 1 3.6 36 3.5 0.79 no 36V Operation and IQ=75µA 3x3 DFN-10,MS-10E 2400 0.03 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 1 30 200kHz - 2.4MHz 250kHz - 2MHz E,I,H Constant Frequency Current Mode 5.4 no Buck yes - - LTspice File,LTpowerCAD Model DC1149A no no 2007-07-31 $4.15 (LT3680EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3972 1 3.6 33 3.5 0.79 no Transient Protection to 62V, Low Ripple Burst Mode Operation 3x3 DFN-10,MS-10E 2400 0.03 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 1 30 250kHz - 2.4MHz 250kHz - 2MHz E,I,H Constant Frequency Current Mode 5.4 no Buck yes - - LTspice File,LTpowerCAD Model DC1458A no no 2008-09-18 $4.25 (LT3972EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT8606 1 3 42 0.35 0.778 yes 42V, 350mA Synchronous Step-Down Regulator with 2.5μA Iq MS-10, DFN-8 2200 0.0017 Burst Mode, Spread Spectrum, Resistor Set Frequency, External Synchronization, Power Good 1 41.4 2.5 200kHz to 2.2MHz 200kHz to 2.2MHz Constant Frequency Current Mode 0.75 no Buck yes Buck - - no yes 2016-10-10 Contact Factory Internal Power Switch Buck,Micropower Buck Regulators no no
LT8607 1 3 42 0.75 0.778 yes 42V, 750mA Synchronous Step-Down Regulator with 2.5μA Iq MS-10, DFN-8 2200 0.0017 Burst Mode, Spread Spectrum, Resistor Set Frequency, External Synchronization, Power Good 1 41.4 2.5 200kHz to 2.2MHz 200kHz to 2.2MHz Constant Frequency Current Mode 1.5 no Buck yes Buck - - no yes 2016-10-10 Contact Factory Internal Power Switch Buck,Micropower Buck Regulators no no
LT8608 1 3 42 1.5 0.778 yes 42V, 1.5A Step-Down with 2.5μA Quiescent Current, Spread Spectrum MS-10E 2200 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Power Good 1 41.5 2.5 200kHz to 2.2MHz 200kHz to 2.2MHz E,I Constant Frequency Current Mode 2.9 no Buck yes Buck LTspice File,LTpowerCAD File DC2458A yes yes 2016-04-01 $2.25 (LT8608EMSE) 14.7mm² (MS-10E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-10E) Matte Tin no yes
LT8609 1 3 42 2 0.8 yes 42V, 2A Synchronous Step-Down Regulator with 2.5μA Quiescent Current MS-10E 2200 0.0025 Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good 1 41.5 1.5 200kHz - 2.2MHz 200kHz - 2.2MHz E,I,H Constant Frequency Current Mode 3.5 no Buck yes Buck LTspice File,LTpowerCAD File DC2195A,DC2195B-A no no 2014-10-24 $2.40 (LT8609BEMSE) 14.7mm² (MS-10E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-10E) Matte Tin no yes
LT8610 1 3.4 42 2.5 0.97 yes 2.5µA Low Ripple Burst Mode Operation, LT8610 50ns Min On-Time MS-16E 2200 0.0024 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking 1 40 1.24 200kHz - 2.2MHz 200kHz - 2.2MHz E,I,H Constant Frequency Current Mode 4.8 no Buck yes - - LTspice File,LTpowerCAD File DC1749A,DC1749B yes no 2012-05-18 $3.55 (LT8610EMSE) 19.8mm² (MS-16E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin,Lead no yes
LT8610A 1 3.4 42 3.5 0.97 yes LT8610A Offers Improved 30ns Min On-Time and Iout, Fixed 3.3V & 5V Options MS-16E 2200 0.0025 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 1 39.7 1.23 200kHz - 2.2MHz 200kHz - 2.2MHz E,I,H Constant Frequency Current Mode 6.7 no Buck yes - - LTspice File,LTpowerCAD File DC2012A,DC2139A no no 2013-12-03 $3.75 (LT8610AEMSE-3.3) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no yes
LT8610AB 1 3.4 42 3.5 0.97 yes LT8610AB Improves Low Ripple Burst Mode Efficiency, Fixed 3.3V & 5V Options MS-16E 2200 0.0025 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 1 39.7 1.23 200kHz - 2.2MHz 200kHz - 2.2MHz E,I,H Constant Frequency Current Mode 6.7 no Buck yes - - LTspice File,LTpowerCAD File DC2012A,DC2139A no no 2013-12-03 $3.75 (LT8610ABEMSE-3.3) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no yes
LT8610AC 1 3 42 3.5 0.8 yes LT8610AC 0.8V Vref, 3V Min Vin, 30ns Min Ton; LT8610AC-1 Optimized For High Fsw MS-16E 2200 0.017 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 1 41.8 1.5 200kHz - 2.2MHz 200kHz - 2.2MHz C,E,I,H Constant Frequency Current Mode 6.7 no Buck yes LTspice File,LTpowerCAD Model - no no 2014-10-16 $3.75 (LT8610ACEMSE-1) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no yes
LT8610AX 1 3.7 42 3.5 0.97 yes 42V, 3.5A Synchronous Step-Down with Operation to 175°C MS-16E 2200 0.026 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 1 39.7 2 200kHz to 2.2MHz 200kHz to 2.2MHz X Constant Frequency Current Mode 6.7 no Buck yes Buck LTspice Model,LTpowerCAD Model - no yes 2016-04-04 $125.00 (LT8610AXMSE) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,X Grade Products 1.1mm (MS-16E) Matte Tin no no
LT8611 1 3.4 42 2.5 0.97 yes 2.5µA Low Ripple Burst Mode 3x5 QFN-24 2200 0.0024 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Rail-to-Rail Current Sense Amplifier, Output Current Monitor 1 40 1.24 200kHz - 2.2MHz 200kHz - 2.2MHz E,I Constant Frequency Current Mode 4.8 no Buck yes - - LTspice File,LTpowerCAD Model DC1750A no no 2012-05-18 $3.80 (LT8611EUDD) 15mm² (3x5 QFN-24) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Step-Down (Buck) LED Drivers 0.75mm (3x5 QFN-24) Matte Tin no yes
LT8612 1 3.4 42 6 0.97 yes 2.5µA Low Ripple Burst Mode 3x6 QFN-28 2200 0.003 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 1 41.6 0.6 200kHz - 2.2MHz 200kHz - 2.2MHz E,I Constant Frequency Current Mode 9.7 no Buck yes - - LTspice File,LTpowerCAD File DC2010A,DC2132A no no 2013-12-10 $4.95 (LT8612EUDE) 18mm² (3x6 QFN-28) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x6 QFN-28) Matte Tin,Lead no yes
LT8613 1 3.4 42 6 0.97 yes 2.5µA Low Ripple Burst Mode, Current Sense Amp and Monitor 3x6 QFN-28 2200 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good, Output Current Regulation, Output Current Monitor, Input Current Regulation, Input Current Monitor 1 41.58 1.23 200kHz - 2.2MHz 200kHz - 2.2MHz E,I Constant Frequency Current Mode 9.7 no Buck yes Buck LTspice File DC2011A yes no 2014-11-10 $5.20 (LT8613EUDE) 18mm² (3x6 QFN-28) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Step-Down (Buck) LED Drivers 0.75mm (3x6 QFN-28) Matte Tin no yes
LT8614 1 3.4 42 4 0.97 yes Silent Switcher Architecture Minimizes EMI, 2.5µA Low Ripple Burst Mode 3x4 QFN-18 3000 0.0017 Silent Switcher Architecture, Low EMI, Burst Mode, Tracking, Power Good 1 41.8 1.2 200kHz - 3MHz 200kHz - 3MHz E,I,H Constant Frequency Current Mode 6 no Buck yes Buck - - - LTspice File,LTpowerCAD File DC2019B yes no 2013-07-02 $4.25 (LT8614EUDC) 12mm² (3x4 QFN-18) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Ultralow Noise Regulators 0.75mm (3x4 QFN-18) Matte Tin,Lead no yes
LT8620 1 3.4 65 2 0.97 yes 2.5µA Low Ripple Burst Mode 3x5 QFN-24,MS-16E 2200 0.0025 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 1 64.75 1.23 200kHz to 2.2MHz 200kHz to 2.2MHz E,I,H,MP Constant Frequency Current Mode 3.8 no Buck yes Buck LTspice File,LTpowerCAD File DC1992A yes no 2014-05-19 $3.75 (LT8620EMSE) 15mm² (3x5 QFN-24),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x5 QFN-24),1.1mm (MS-16E) Matte Tin no yes
LT8697 1 5 42 2.5 5 yes USB 5V 2.5A Output, Cable Drop Compensation 3x5 QFN-24 2200 9 Cable Drop Compensation, Programmable Output Current Limit, Output Current Monitor, Tracking, Resistor Set Frequency, External Synchronization 1 5.25 1.3 300kHz - 2.2MHz 300kHz - 2.2MHz E,I,H Constant Frequency Current Mode 4.5 no Buck yes - - LTspice File DC1973A yes no 2013-07-09 $3.55 (LT8697EUDD) 15mm² (3x5 QFN-24) Cable Drop Compensation,Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 0.75mm (3x5 QFN-24) Matte Tin no no
LTC1174 1 4 13.5 0.432 1.25 no Fixed Outputs of 3.3V, 5V Available N-8,SO-8 200 0.13 Fixed Output 1 13 4 C,I Constant Off-Time Current Mode 0.6 no Buck, Inverting yes - - LTspice Model DC059A-A,DC059A-B,DC059A-C no no 1993-11-10 $3.50 (LTC1174CN8-3.3) 31mm² (SO-8),65.7mm² (N-8) Internal Power Switch Buck,Inverting Regulators 1.75mm (SO-8),3.3mm (N-8) Lead,Matte Tin no no
LTC1174HV 1 4 18.5 0.432 1.25 no Fixed Outputs of 3.3V, 5V Available N-8,SO-8 200 0.13 Fixed Output 1 18 4 C,I Constant Off-Time Current Mode 0.6 no Buck, Inverting yes - - LTspice Model DC059A-A,DC059A-B,DC059A-C no no 1993-11-10 $4.00 (LTC1174HVCN8-3.3) 31mm² (SO-8),65.7mm² (N-8) Internal Power Switch Buck,Inverting Regulators 1.75mm (SO-8),3.3mm (N-8) Lead,Matte Tin no no
LTC1879 1 2.65 10 1.2 0.8 yes 100% Duty Cycle, Integrated PLL SSOP-16 550 0.015 Burst Mode, External Synchronization, 100% Duty Cycle 1 10 5 350kHz - 750kHz E Constant Frequency Current Mode 2.2 no Buck yes - - LTspice Model DC432A no no 2002-01-23 $3.60 (LTC1879EGN) 30.9mm² (SSOP-16) Internal Power Switch Buck,Micropower Buck Regulators 1.75mm (SSOP-16) Lead,Matte Tin no no
LTC3103 1 2.5 15 0.3 0.6 yes 1.8μA Quiescent Current, 15V, 300mA Synchronous Step-Down 3x3 DFN-10,MS-10E 1200 0.0018 Burst Mode, Power Good 1 13.8 2 E,I Constant Frequency Current Mode 0.5 no Buck yes - - LTspice File DC1883A no no 2011-11-04 $2.45 (LTC3103EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Energy Harvesting,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LTC3104 2 2.5 15 0.3 0.6 yes 2.6uA Quiescent Current, 300mA Buck & 10mA LDO 4x3 DFN-14,MS-16E 1200 0.0026 Burst Mode, Power Good, LDO 1 13.8 2 E,I Constant Frequency Current Mode 0.5 no Buck, LDO yes Buck LDO 0.01 0.6 - LTspice Model DC1754A no no 2011-11-04 $2.70 (LTC3104EDE) 12mm² (4x3 DFN-14),19.8mm² (MS-16E) Buck Regulator Plus LDO,Energy Harvesting,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Matte Tin no yes
LTC3126 1 2.4 42 2.5 0.818 yes 42V, 2.5A Synchronous Step-Down Regulator with No-Loss Input PowerPath 4x5 QFN-28,TSSOP-28 2200 0.0055 Dual Input, Ideal Diode, Prioritizer, Burst Mode, Power Good 1 42 1.7 200kHz - 2.2MHz 200kHz - 2.2MHz E,I,H Constant Frequency Current Mode 3.9 no Buck yes Buck - DC2215A yes yes 2016-09-12 $6.25 (LTC3126EUFD) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,PowerPath Controllers & Ideal Diodes 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no no
LTC3374A 8 2.25 5.5 1 0.8 yes 8-Channel Parallelable 1A Buck DC/DCs, /A offers improved efficiency, accuracy and OV pin 5x7 QFN-38,TSSOP-38 2000 0.045 Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization, Temperature Monitor 1 5.5 2 1MHz - 3MHz 1MHz - 3MHz E,I,H Constant Frequency Current Mode 1.8 no Buck yes Buck Buck 1 0.8 5.5 Buck 1 0.8 5.5 Buck 1 LTspice Model DC2440A no yes 2016-07-27 $4.65 (LTC3374AEUHF) 35mm² (5x7 QFN-38),62.7mm² (TSSOP-38) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (5x7 QFN-38),1.2mm (TSSOP-38) Matte Tin no no
LTC3375 8 2.25 5.5 1 0.425 yes 8-Channel I2C Programmable, Parallelable 1A Bucks 7x7 QFN-48 3000 0.018 Burst Mode, I2C Control, Tracking, Temperature Monitor, Watchdog Timer, Resistor Set Frequency, External Synchronization 1 5.5 2.5 1MHz - 3MHz 1MHz - 3MHz E,I,H Constant Frequency Current Mode 2.3 no Buck yes Buck Buck 1 0.425 5.5 Buck 1 0.425 5.5 Buck 1 - DC1921A yes no 2012-11-16 $5.45 (LTC3375EUK) 49mm² (7x7 QFN-48) Digitally Programmable Regulators,Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (7x7 QFN-48) Matte Tin no yes
LTC3446 3 2.7 5.5 1 0.8 yes 1A Buck Regulator with Dual 600mA VLDO Regulators 4x3 DFN-14 2250 0.05 LDO, Power Good, Burst Mode 1 5.5 2 E,I Constant Frequency Current Mode 1.55 no Buck, LDO, LDO yes Buck LDO 0.3 0.4 5.432 LDO 0.3 0.4 5.432 LTspice Model DC893A no no 2006-09-12 $2.75 (LTC3446EDE) 12mm² (4x3 DFN-14) Buck Regulator Plus LDO,Internal Power Switch Buck,Micropower Buck Regulators,Multitopology DC/DC 0.75mm (4x3 DFN-14) Lead,Matte Tin no yes
LTC3670 3 2.5 5.5 0.4 0.8 yes Monolithic 400mA Buck Regulator with Dual 150mA LDOs 3x2 DFN-12 2250 0.07 LDO, Burst Mode, Adjustable Slew Rate 1 5.5 2.5 E Constant Frequency Current Mode 0.8 no Buck, LDO yes Buck LDO 0.15 0.8 5.5 LDO 0.15 0.8 5.5 LTspice Model DC1277A no no 2008-01-23 $1.95 (LTC3670EDDB) 6mm² (3x2 DFN-12) Buck Regulator Plus LDO,Internal Power Switch Buck,Micropower Buck Regulators,Multitopology DC/DC 0.75mm (3x2 DFN-12) Matte Tin no no
LTC3672B-1 3 2.9 5.5 0.4 1.8 yes 400mA Buck (Fixed 1.8V) with Dual 150mA LDOs (Fixed 1.2V & 2.8V) 2x2 DFN-8 2250 0.26 LDO, Fixed Output, 100% Duty Cycle, Adjustable Slew Rate 1 1.8 2.5 E Constant Frequency Current Mode 0.8 no Buck, LDO yes Buck LDO 0.15 1.2 1.2 LDO 0.15 2.8 2.8 LTspice Model - no no 2007-06-20 $1.95 (LTC3672BEDC-1) 4mm² (2x2 DFN-8) Buck Regulator Plus LDO,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (2x2 DFN-8) Matte Tin no no
LTC3672B-2 3 2.9 5.5 0.4 1.2 yes 400mA Buck (Fixed 1.2V) with Dual 150mA LDOs (Fixed 1.8V & 2.8V) 2x2 DFN-8 2250 0.26 LDO, Fixed Output, 100% Duty Cycle, Adjustable Slew Rate 1 1.2 2.5 E Constant Frequency Current Mode 0.8 no Buck, LDO yes Buck LDO 0.15 1.8 1.8 LDO 0.15 2.8 2.8 LTspice Model DC1324A no no 2007-07-30 $1.95 (LTC3672BEDC-2) 4mm² (2x2 DFN-8) Buck Regulator Plus LDO,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (2x2 DFN-8) Matte Tin no no
LTC3815 1 2.25 5.5 6 0.4 yes 6A Monolithic Step-Down with Digital Power System Management 4x6 QFN-38 3000 5 PMBus, EEPROM, Fault Logging, Supervisor, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, PolyPhase, External Synchronization 1 3.96 0.25 Up to 3MHz Up to 3MHz E,I Constant Frequency Current Mode no Buck yes - DC2065A yes yes 2015-06-09 $4.71 (LTC3815EUFE) 24mm² (4x6 QFN-38) Digital Power System Management,Digitally Programmable Regulators,Internal Power Switch Buck 0.75mm (4x6 QFN-38) Matte Tin no no
LT8640 1 3.4 42 5 0.97 yes Step-Down Silent Switcher, LT8640 Pulse Skipping, /-1 Forced Continuous 3x4 QFN-18 3000 0.0017 Silent Switcher Architecture, Low EMI, Burst Mode, Tracking, Power Good 0.75 41.9 1.23 200kHz - 3MHz 200kHz - 3MHz E,I,H Constant Frequency Current Mode 10 no Buck yes LTspice File,LTpowerCAD File DC2202A yes no 2014-12-09 $4.35 (LT8640EUDC-1) 12mm² (3x4 QFN-18) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Ultralow Noise Regulators 0.75mm (3x4 QFN-18) Matte Tin no yes
LT8641 1 3 65 3.5 0.81 yes 65V, 3.5A Synchronous Step-Down Silent Switcher with 2.5μA Iq 3x4 QFN-18 3000 0.0025 Silent Switcher Architecture, Spread Spectrum, Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.75 64 1.48 200kHz to 3MHz 200kHz to 3MHz E,I Constant Frequency Current Mode 5.8 no Buck yes Buck LTspice File,LTpowerCAD File DC2373A no yes 2016-02-10 $4.35 (LT8641EUDC) 12mm² (3x4 QFN-18) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Ultralow Noise Regulators 0.75mm (3x4 QFN-18) Matte Tin no no
LT3970 1 4.2 40 0.35 1.21 no 2.5μA IQ, Integrated Boost & Catch Diodes, -3.3/-3.42/-5 Fixed Vout 3x2 DFN-10,MS-10 2200 0.0017 Burst Mode, Resistor Set Frequency, Power Good 0.7 25 2 200kHz - 2.2MHz E,I,H Constant Frequency Current Mode 0.7 no Buck yes - - LTspice File,LTpowerCAD Model DC1566A no no 2009-08-26 $2.35 (LT3970EDDB-3.3) 6mm² (3x2 DFN-10),14.7mm² (MS-10) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x2 DFN-10),1.1mm (MS-10) Matte Tin no yes
LT3971 1 4.3 38 1.2 1.19 no 2.5μA IQ, Integrated Boost & Catch Diodes 3x3 DFN-10,MS-10E,MS-16E 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization 0.7 30 2.1 200kHz - 2MHz 250kHz - 2MHz E,I Constant Frequency Current Mode 2.4 no Buck yes - - LTspice File,LTpowerCAD Model DC1527A no no 2009-11-04 $2.75 (LT3971EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E),19.8mm² (MS-16E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-16E),1.1mm (MS-10E) Matte Tin no yes
LT3971-3.3 1 4.3 38 1.2 3.3 no 2.5μA IQ, Integrated Boost & Catch Diodes, 3.3V Fixed Output 3x3 DFN-10,MS-10E 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Fixed Output 0.7 3.3 2.1 200kHz - 2MHz 250kHz - 2MHz E,I Constant Frequency Current Mode 2.4 no Buck yes - - LTspice File,LTpowerCAD Model DC1527A no no 2009-11-04 $2.75 (LT3971EDD-3.3) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3971-5 1 4.3 38 1.2 5 no 2.5μA IQ, Integrated Boost & Catch Diodes, 5V Fixed Output 3x3 DFN-10,MS-10E 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Fixed Output 0.7 5 2.1 200kHz - 2MHz 250kHz - 2MHz E,I Constant Frequency Current Mode 2.4 no Buck yes - - LTspice File,LTpowerCAD Model DC1527A no no 2009-11-04 $2.75 (LT3971EDD-5) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3971A 1 4.3 38 1.3 1.19 no LT3791A Offers More Accurate Vref MS-10E 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.7 30 2.1 200kHz - 2MHz 250kHz - 2MHz I Constant Frequency Current Mode 2.5 no Buck yes - - LTspice File,LTpowerCAD Model - no no 2012-02-21 $3.35 (LT3971AIMSE) 14.7mm² (MS-10E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-10E) Matte Tin no yes
LT3971A-5 1 4.3 38 1.3 5 no LT3791A-5 Offers More Accurate Vref, Fixed 5Vout MS-10E 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.7 5 2.1 200kHz - 2MHz 250kHz - 2MHz I Constant Frequency Current Mode 2.5 no Buck yes - - LTspice File,LTpowerCAD Model - no no 2012-02-21 $3.35 (LT3971AIMSE-5) 14.7mm² (MS-10E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-10E) Matte Tin no yes
LT3975 1 4 42 2.5 1.197 no Low Ripple Burst Mode MS-16E 2000 0.0016 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.7 40.74 200kHz - 2MHz 250kHz - 2MHz E,I,H Constant Frequency Current Mode 5.4 no Buck yes - - LTspice File,LTpowerCAD Model DC1736A no no 2012-07-13 $3.10 (LT3975EMSE) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no yes
LT3976 1 4.3 40 5 1.197 no Low Ripple Burst Mode 3x5 QFN-24,MS-16E 2000 0.0016 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.7 38.8 200kHz - 2MHz 250kHz - 2MHz E,I,H Constant Frequency Current Mode 10 no Buck yes - - LTspice File,LTpowerCAD Model DC1848A no no 2012-07-13 $3.75 (LT3976EMSE) 15mm² (3x5 QFN-24),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x5 QFN-24),1.1mm (MS-16E) Lead,Matte Tin no yes
LT3990 1 4 60 0.35 1.21 no -3.3/-5 Fixed Output Versions 3x3 DFN-10,MS-16E 2200 0.0017 Burst Mode, Resistor Set Frequency, Power Good 0.7 25 2.1 200kHz - 2.2MHz E,I,H Constant Frequency Current Mode 0.7 no Buck yes - - LTspice File,LTpowerCAD Model DC1471A yes no 2009-12-07 $2.55 (LT3990EDD) 9mm² (3x3 DFN-10),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-16E) Matte Tin no yes
LT3991 1 4.3 55 1.2 1.19 no Ultralow 2.8μA IQ, Low Ripple Burst Mode 3x3 DFN-10,MS-10E 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization 0.7 30 2.1 200kHz - 2MHz 250kHz - 2MHz E,I Constant Frequency Current Mode 2.3 no Buck yes - - LTspice File,LTpowerCAD Model DC1526A no no 2009-11-04 $2.95 (LT3991EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3995 1 4.3 60 3 1.197 no Ultralow 3.4μA IQ, Low Ripple Burst Mode MS-16E 2000 0.0016 Burst Mode, External Synchronization, Resistor Set Frequency, Power Good 0.7 55.8 2 200kHz - 2MHz 250kHz - 2MHz E,I,H Constant Frequency Current Mode 6.3 no Buck yes - - LTspice File,LTpowerCAD Model DC1832A no no 2013-05-06 $3.55 (LT3995EMSE) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no yes
LTC3562 4 2.85 5.5 0.6 0.425 yes I2C Quad Step-Down 2 x 600mA, 2 x 400mA 3x3 QFN-20 2250 0.024 I2C Control, Adjustable Slew Rate, Burst Mode, 100% Duty Cycle 0.7 5 3 E Constant Frequency Current Mode 1.2 no Buck yes Buck Buck 0.6 0.6 5 Buck 0.4 0.6 5 Buck 0.4 - DC1123A no no 2007-08-23 $3.25 (LTC3562EUD) 9mm² (3x3 QFN-20) Digitally Programmable Regulators,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 QFN-20) Matte Tin no no
LTC3388 1 2.7 20 0.05 1.2 yes 20V High Efficiency Nanopower Step-Down Regulator 3x3 DFN-10,MS-10E 0.00072 Pin Selectable Output Voltage 0.52 5 3 E,I Hysteretic Mode Control 0.15 no Buck yes - - LTspice File DC1658A-B,DC1658A-A no no 2010-07-20 $2.95 (LTC3388EDD-1) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Energy Harvesting,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin,Lead no yes
LT3502 1 3 40 0.5 0.8 no LT3502 1.1MHz, LT3502A 2.2MHz 2x2 DFN-8,MS-10 2200 1.5 Integrated Boost Diode 0.5 36 2 E,I Constant Frequency Current Mode 0.9 no Buck yes - - LTspice File,LTpowerCAD Model DC1221A,DC1089B,DC1221B no no 2007-04-30 $1.95 (LT3502EDC) 4mm² (2x2 DFN-8),14.7mm² (MS-10) High Input Voltage Buck,Internal Power Switch Buck 0.75mm (2x2 DFN-8),1.1mm (MS-10) Matte Tin,Lead no yes
LTC1701 1 2.5 5 0.72 1.25 no Synchronous, 100% Duty Cycle SOT-23 1000 0.135 Burst Mode, 100% Duty Cycle 0.25 5 2.4 E Constant Off-Time Current Mode 1.1 no Buck yes - - LTspice Model DC289A,DC376A no no 2000-01-05 $2.00 (LTC1701ES5) 8.1mm² (SOT-23) Internal Power Switch Buck 1mm (SOT-23) Lead,Matte Tin no no
LTC1701B 1 2.5 5 0.72 1.25 no Synchronous, 100% Duty Cycle, LT1701B Has No Burst Mode SOT-23 1000 0.185 Burst Mode, 100% Duty Cycle 0.25 5 2.4 E Constant Off-Time Current Mode 1.1 no Buck yes - - LTspice Model DC289A,DC376A no no 2000-01-05 $2.00 (LTC1701BES5) 8.1mm² (SOT-23) Internal Power Switch Buck 1mm (SOT-23) Lead,Matte Tin no no
LTC3415 1 2.5 5.5 7 0.6 yes 7A, PolyPhase Synchronous Step-Down Regulator 5x7 QFN-38 2250 0.45 Burst Mode, Tracking, PolyPhase, External Synchronization, Spread Spectrum, 100% Duty Cycle 0.2 5.5 750kHz - 2.25MHz E Constant Frequency Current Mode 13 no Buck yes - - LTspice File,LTpowerCAD File DC725A,DC768A no no 2006-03-09 $6.50 (LTC3415EUHF) 35mm² (5x7 QFN-38) Internal Power Switch Buck 0.75mm (5x7 QFN-38) Lead,Matte Tin no no
LTC3546 2 2.25 5.5 2 0.6 yes Dual Synchronous, 3A/1A or 2A/2A Configurable Buck 4x5 QFN-28,TSSOP-28 2250 0.16 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Tracking, 100% Duty Cycle 0.2 5 750kHz - 4MHz 750kHz - 4MHz E,I Constant Frequency Current Mode 3.2 no Buck yes Buck Buck 2 .8 - LTspice File DC1086A,DC1087A no no 2009-01-22 $3.75 (LTC3546EUFD) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no yes
LTC3602 1 4.5 10 2.5 0.6 yes 2.5A, 10V, Monolithic Synchronous Step-Down Regulator 4x4 QFN-20,TSSOP-16 3000 0.075 Burst Mode, External Synchronization, Resistor Set Frequency, Power Good .2 10 300kHz - 3MHz 300kHz - 3MHz E,I 4.5 no Buck yes LTspice File,LTpowerCAD File DC1015A no no 2008-02-12 $4.00 (LTC3602EUF) 16mm² (4x4 QFN-20),32.6mm² (TSSOP-16) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (4x4 QFN-20),1.1mm (TSSOP-16) Lead,Matte Tin no yes
LTC3603 1 4.5 15 2.5 0.6 yes 2.5A, 15V, Monolithic Synchronous Step-Down Regulator 4x4 QFN-20,MS-16E 3000 0.075 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.2 14.85 300kHz - 3MHz 300kHz - 3MHz E,I Constant Frequency Current Mode 4.5 no Buck yes - - LTspice File,LTpowerCAD File DC1442A,DC1445A no no 2009-01-15 $3.25 (LTC3603EMSE) 16mm² (4x4 QFN-20),19.8mm² (MS-16E) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (4x4 QFN-20),1.1mm (MS-16E) Matte Tin,Lead no yes
LT1936 1 3.6 36 1.4 1.2 no 1.4A, 500kHz Step-Down Switching Regulator MS-8 500 1.8 - 0.1 31.32 E,I,H Constant Frequency Current Mode 2.2 no Buck yes - - LTspice File DC825A no no 2005-03-18 $2.75 (LT1936EMS8E) 14.7mm² (MS-8) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck 1.1mm (MS-8) Lead,Matte Tin no yes
LT1938 1 3.6 25 2.2 1.265 no 3x3 DFN-10 2800 0.4 Integrated Boost Diode, Power Good, Resistor Set Frequency 0.1 23.875 300kHz - 2.8MHz E,I Constant Frequency Current Mode 3.6 no Buck yes - - LTspice File,LTpowerCAD Model DC1273A no no 2007-10-03 $2.75 (LT1938EDD) 9mm² (3x3 DFN-10) Internal Power Switch Buck 0.75mm (3x3 DFN-10) Matte Tin no yes
LT1977 1 3.3 60 1.24 1.2 no 100µA IQ, 500kHz Switching TSSOP-16 500 0.1 Burst Mode, External Synchronization 0.1 54 2 575kHz - 700kHz E,I Constant Frequency Current Mode 2.4 no Buck yes - - LTspice Model DC639A no no 2004-06-30 $4.00 (LT1977EFE) 32.6mm² (TSSOP-16) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3435 1 3.3 60 2.4 1.25 no 100µA Quiescent Current TSSOP-16 500 0.1 Burst Mode, External Synchronization, Power Good 0.1 54 575kHz - 700kHz E,I Constant Frequency Current Mode 5.2 no Buck yes - - LTspice Model,LTpowerCAD Model DC613A no no 2005-09-28 $5.25 (LT3435EFE) 32.6mm² (TSSOP-16) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3437 1 3.3 60 0.4 1.25 no 60V VIN w/ 80V transients, Burst Mode 3x3 DFN-10,TSSOP-16 200 0.075 External Synchronization, Burst Mode 0.1 54 2 240kHz - 700kHz E,I,H Constant Frequency Current Mode 0.65 no Buck yes - - LTspice File DC1232A no no 2005-07-29 $2.25 (LT3437EDD) 9mm² (3x3 DFN-10),32.6mm² (TSSOP-16) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3470 1 4 40 0.2 1.25 no Integrated Boost & Catch Diodes, LT3470 5.5V Min Startup, 300mA Iswitch 3x2 DFN-8,SOT-23 0.025 Burst Mode, Integrated Boost Diode 0.1 16 1.2 Hysteretic E,I,H Hysteretic Mode Control 0.325 no Buck yes - - LTspice File DC1037A,DC716B no no 2004-12-28 $2.36 (LT3470EDDB) 6mm² (3x2 DFN-8),8.1mm² (SOT-23) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x2 DFN-8),1mm (SOT-23) Lead,Matte Tin no yes
LT3470A 1 4 40 0.25 1.25 no Integrated Boost & Catch Diodes, LT3470A 4V Min Startup, 400mA Iswitch 3x2 DFN-8 0.04 Burst Mode, Integrated Boost Diode 0.1 16 1.2 E,I,H Hysteretic Mode Control 0.44 no Buck yes - - LTspice File DC1382A no no 2004-12-28 $2.46 (LT3470AEDDB) 6mm² (3x2 DFN-8) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x2 DFN-8) Matte Tin no yes
LT3508 2 3.7 36 1.4 0.8 no Dual 1.4A Buck 4x4 QFN-24,TSSOP-16 2500 4.3 External Synchronization, Resistor Set Frequency, Anti-Phase Switching, Tracking, Power Good 0.1 35.28 250kHz - 2.5MHz 250kHz - 2.5MHz E,I,H Constant Frequency Current Mode 2.6 no Buck yes Buck Buck 1.4 0.8 - LTspice File,LTpowerCAD Model DC1060A no no 2007-01-22 $3.35 (LT3508EUF) 16mm² (4x4 QFN-24),32.6mm² (TSSOP-16) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x4 QFN-24),1.1mm (TSSOP-16) Matte Tin no yes
LT3640 2 4 35 1.3 1.265 yes Dual High (35V) and Low (5.5V) Vin Buck, POR & Watchdog 4x5 QFN-28,TSSOP-28 2500 0.275 Power On Reset, Burst Mode, Watchdog Timer, Resistor Set Frequency, External Synchronization, Power Good 0.1 33.97 2 350kHz - 2.5MHz 350kHz - 2.5MHz E,I Constant Frequency Current Mode 2.8 no Buck yes Buck Buck 1 0.6 - LTspice File DC1359A no no 2010-01-19 $3.50 (LT3640EUFD) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no yes
LT3641 2 4 42 1.3 1.265 yes Dual High (42V) and Low (5.5V) Vin Buck, POR & Watchdog 4x5 QFN-28,TSSOP-28 2500 0.275 Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start 0.1 40.97 2 350kHz - 2.5MHz 350kHz - 2.5MHz E,I,H Constant Frequency Current Mode 2.8 no Buck yes Buck Buck 1.1 0.6 - LTspice File DC1727A no no 2011-07-26 $3.65 (LT3641EUFD) 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no yes
LT3686 1 3.6 37 1.2 0.8 no 55V Overvoltage Protection 3x3 DFN-10 2500 1.1 Resistor Set Frequency 0.1 30 1.875 300kHz - 2.5MHz E,I,H Constant Frequency Current Mode 2.3 no Buck yes - - LTspice File,LTpowerCAD Model DC1323A no no 2009-11-13 $2.50 (LT3686EDD) 9mm² (3x3 DFN-10) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 0.75mm (3x3 DFN-10) Matte Tin no yes
LT3686A 1 3.6 37 1.2 0.8 no LT3686A Version Has 60V OVP and External Sync Option 3x3 DFN-10,MS-12E 2500 1.1 Resistor Set Frequency, External Synchronization, Tracking 0.1 37 1.875 300kHz - 2.5MHz 300kHz - 2.5MHz E,I,H Constant Frequency Current Mode 2.3 no Buck yes - - LTspice File,LTpowerCAD Model DC1647A no no 2010-08-16 $2.50 (LT3686AEDD) 9mm² (3x3 DFN-10),19.8mm² (MS-12E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 0.75mm (3x3 DFN-10),1.1mm (MS-12E) Matte Tin no yes
LT3690 1 3.9 36 4 0.8 yes 70uA Quiescent Current, Low Ripple Burst Mode 4x6 QFN-26 1500 0.07 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.1 20 170kHz to 1.5MHz 170kHz to 1.5MHz E,I,H,MP Constant Frequency Current Mode 6.6 no Buck yes - - LTspice File,LTpowerCAD Model DC1520A yes no 2011-02-03 $4.95 (LT3690EUFE) 24mm² (4x6 QFN-26) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (4x6 QFN-26) Matte Tin no yes
LT3693 1 3.6 36 3.5 0.79 no 3x3 DFN-10,MS-10E 2400 1.3 Resistor Set Frequency, External Synchronization, Power Good 0.1 34.92 200kHz - 2.4MHz 250kHz - 2MHz E,I Constant Frequency Current Mode 5.4 no Buck yes - - LTspice File,LTpowerCAD Model DC1272A no no 2007-09-18 $3.85 (LT3693EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3694 3 4 36 2.6 0.75 no 36V, 2.6A Monolithic Buck Regulator with Dual LDO 4x5 QFN-28,TSSOP-20 2500 1 LDO, Tracking, Resistor Set Frequency, External Synchronization 0.1 16 2 250kHz - 2.5MHz 250kHz - 2.5MHz E,I Constant Frequency Current Mode 4.9 no Buck, LDO yes Buck LDO 1 0.75 16 LDO 1 0.75 16 LTspice File,LTpowerCAD Model DC1541A-A yes no 2010-10-29 $3.85 (LT3694EUFD-1) 20mm² (4x5 QFN-28),42.2mm² (TSSOP-20) Buck Regulator Plus LDO,High Input Voltage Buck,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (4x5 QFN-28),1.2mm (TSSOP-20) Matte Tin no yes
LT3988 2 4.1 60 1 0.75 no Dual 1A Buck, 80V OVP, Integrated Boost Diodes MS-16E 2500 1.6 Resistor Set Frequency, External Synchronization, Anti-Phase Switching, Tracking 0.1 59.4 2 250kHz - 2.5MHz 250kHz - 2.5MHz E,I,H Constant Frequency Current Mode 1.32 no Buck yes Buck Buck 1 0.75 - LTspice File DC1677A no no 2012-04-02 $3.65 (LT3988EMSE) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 1.1mm (MS-16E) Matte Tin no yes
LT8601 3 3 42 2.5 1 yes Triple 42V, 2.5A, 1.8A, 1.5A Monolithic Synchronous Step-Down 6x6 QFN-40 2200 0.03 Burst Mode, Resistor Set Frequency, External Synchronization, Power On Reset, Power Good 0.1 41.4 1.5 250kHz - 2.2MHz 250kHz - 2.2MHz E,I Constant Frequency Current Mode 4 no Buck yes Buck Buck 1.5 1 41.4 Buck 1.8 0.8 5.5 LTspice File,LTpowerCAD Model DC2346A no yes 2016-01-13 $5.15 (LT8601EUJ) 36mm² (6x6 QFN-40) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (6x6 QFN-40) Matte Tin no no
LT8602 4 3 42 2.5 1 yes Quad Monolithic Step-Down (2 HV Buck 2.5A/1.5A, 2 LV Buck 1.8A/1.8A) 6x6 QFN-40 2200 0.03 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, PolyPhase 0.1 42 1.2 250kHz - 2.2MHz 250kHz - 2.2MHz E,I Constant Frequency Current Mode 4 no Buck yes Buck Buck 1.8 1 42 Buck 1.8 0.8 5.5 Buck 1.5 LTspice File,LTpowerCAD File DC1949A yes yes 2015-07-13 $5.35 (LT8602EUJ) 36mm² (6x6 QFN-40) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (6x6 QFN-40) Matte Tin no yes
LTC3403 1 2.5 5 0.6 0.3 yes Synchronous, Integrated ByPass MOSFET 3x3 DFN-8 1500 0.02 Burst Mode 0.1 5 2.1 E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD Model DC560A no no 2003-02-10 $2.10 (LTC3403EDD) 9mm² (3x3 DFN-8) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-8) Lead,Matte Tin no no
LTC3405A 1 2.65 5.5 0.3 0.8 yes LTC3405A Version Uses All Ceramic Caps SOT-23 1500 0.02 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 6 2 E Constant Frequency Current Mode 0.5 no Buck yes - - LTspice Model,LTpowerCAD File DC480A-E,DC480A-F no no 2001-09-25 $1.67 (LTC3405AES6) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Lead,Matte Tin no no
LTC3405A-1.375 1 2.5 5.5 0.3 1.375 yes Fixed 1.375V Output, All Ceramic Caps SOT-23 1500 0.02 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 1.375 3 E Constant Frequency Current Mode 0.5 no Buck yes - - LTspice Model,LTpowerCAD Model - no no 2001-09-25 $1.67 (LTC3405AES6-1.375) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Lead,Matte Tin no no
LTC3405A-1.5 1 2.65 5.5 0.3 1.5 yes Fixed 1.5V Output, All Ceramic Caps SOT-23 1500 0.02 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 1.5 3 E Constant Frequency Current Mode 0.5 no Buck yes - - LTspice Model,LTpowerCAD File DC480A-A,DC480A-B no no 2001-09-25 $1.67 (LTC3405AES6-1.5) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Lead,Matte Tin no no
LTC3405A-1.8 1 2.65 5.5 0.3 1.8 yes Fixed 1.8V Output, All Ceramic Caps SOT-23 1500 0.02 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 1.8 3 E Constant Frequency Current Mode 0.5 no Buck yes - - LTspice Model,LTpowerCAD File DC480A-C,DC480A-D no no 2001-09-25 $1.67 (LTC3405AES6-1.8) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Lead,Matte Tin no no
LTC3406-1.2 1 2.5 5.5 0.6 1.2 yes 1.5MHz, Burst Mode, LTC3406-1.2 Fixed 1.2V Output SOT-23 1500 0.02 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 1.2 3 E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD Model - no no 2002-05-23 $2.01 (LTC3406ES5-1.2) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Lead,Matte Tin no no
LTC3406-1.5 1 2.5 5.5 0.6 1.5 yes 1.5MHz, Burst Mode, LTC3406-1.5 Fixed 1.5V Output SOT-23 1500 0.02 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 1.5 3 E Constant Frequency Current Mode 1 no Buck yes - - LTspice File,LTpowerCAD File DC500A-B no no 2002-05-23 $2.01 (LTC3406ES5-1.5) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Lead,Matte Tin no no
LTC3406-1.8 1 2.5 5.5 0.6 1.8 yes 1.5MHz, Burst Mode, LTC3406-1.8 Fixed 1.8V Output SOT-23 1500 0.02 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 1.8 3 E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD File DC500A-C no no 2002-05-23 $2.01 (LTC3406ES5-1.8) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Lead,Matte Tin no no
LTC3406A 1 2.5 5.5 0.6 0.6 yes 1.5MHz, LTC3406A Has Low Ripple Pulse-Skipping Mode SOT-23 1500 0.02 Burst Mode, 100% Duty Cycle 0.1 5.5 2 E,I Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD Model - no no 2002-05-23 $1.83 (LTC3406AES5) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Matte Tin no yes
LTC3406AB 1 2.5 5.5 0.6 0.6 yes 1.5MHz, LTC3406AB Has Soft Start, Disables Burst Mode SOT-23 1500 0.2 100% Duty Cycle 0.1 5.5 2 E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD Model - no no 2002-05-23 $1.83 (LTC3406ABES5) 8.1mm² (SOT-23) Internal Power Switch Buck 1mm (SOT-23) Matte Tin no no
LTC3406AB-2 1 2.5 5.5 0.6 0.6 yes 2.25MHz, Disables Burst Mode SOT-23 2250 0.2 100% Duty Cycle 0.1 5 2 E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD Model - no no 2002-05-23 $1.83 (LTC3406ABES5-2) 8.1mm² (SOT-23) Internal Power Switch Buck 1mm (SOT-23) Matte Tin no no
LTC3406B-1.2 1 2.5 5.5 0.6 1.2 yes 1.5MHz, Disables Burst Mode SOT-23 1500 0.3 Fixed Output, 100% Duty Cycle 0.1 1.2 3 E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD Model - no no 2002-05-23 $2.01 (LTC3406BES5-1.2) 8.1mm² (SOT-23) Internal Power Switch Buck 1mm (SOT-23) Lead,Matte Tin no no
LTC3407-3 2 3.3 5.5 0.8 1.8 yes Dual 800mA Buck, 2.25MHz, LTC3407-3 Offers Fixed 1.8V and 3.3V 3x3 DFN-10 2250 0.04 Burst Mode, External Synchronization, Power On Reset, Fixed Output, 100% Duty Cycle 0.1 3.3 2 2.25MHz E Constant Frequency Current Mode 1.2 no Buck yes Buck Buck 0.8 3.3 - LTspice Model,LTpowerCAD Model - no no 2003-06-18 $2.95 (LTC3407EDD-3) 9mm² (3x3 DFN-10) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 DFN-10) Lead,Matte Tin no no
LTC3407-4 2 2.5 5.5 0.8 0.6 yes Dual 800mA Buck, 2.25MHz LTC3407-4 has Reduced POR Time 3x3 DFN-10,MS-10E 2250 0.04 Burst Mode, Power On Reset, External Synchronization, 100% Duty Cycle 0.1 5.5 2 2.25MHz E Constant Frequency Current Mode 1.2 no Buck yes Buck Buck 0.8 0.6 - LTspice Model,LTpowerCAD Model - no no 2003-06-18 $2.95 (LTC3407EDD-4) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Lead,Matte Tin no no
LTC3407A-2 2 2.5 5.5 0.8 0.6 yes Dual 800mA Buck, LTC3407A-2 Offers Low Ripple Burst Mode, 2.25MHz 3x3 DFN-10,MS-10E 2250 0.04 Burst Mode, External Synchronization, Power On Reset, 100% Duty Cycle 0.1 5.5 2 1.8MHz - 2.7MHz E,I Constant Frequency Current Mode 1.2 no Buck yes Buck Buck 0.8 0.6 - LTspice Model,LTpowerCAD Model - no no 2003-06-18 $2.95 (LTC3407AEDD-2) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Lead,Matte Tin no yes
LTC3408 1 2.5 5 0.6 0.3 yes Bypass Transistor 3x3 DFN-8 1500 1.5 100% Duty Cycle 0.1 5 2.1 E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model DC645A no no 2003-10-07 $1.90 (LTC3408EDD) 9mm² (3x3 DFN-8) Internal Power Switch Buck 0.75mm (3x3 DFN-8) Lead,Matte Tin no no
LTC3409 1 1.6 5.5 0.6 0.62 yes 100% Duty Cycle 3x3 DFN-8 2600 0.065 External Synchronization, 100% Duty Cycle 0.1 5.5 2.5 1MHz - 3MHz E,I Constant Frequency Current Mode 1 no Buck yes - - LTspice File,LTpowerCAD Model DC828A no no 2005-03-08 $2.15 (LTC3409EDD) 9mm² (3x3 DFN-8) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-8) Lead,Matte Tin no yes
LTC3409A 1 1.6 5.5 0.6 0.62 yes 100% Duty Cycle, LTC3409A Has Tighter VREF and Line Regulation Limits 3x3 DFN-8 2600 0.065 Burst Mode, Resistor Set Frequency, External Synchronization, 100% Duty Cycle 0.1 5.5 2.3 1.7MHz or 2.6MHz 1MHz - 3MHz E,I Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD Model - no no 2005-03-08 $2.37 (LTC3409AEDD) 9mm² (3x3 DFN-8) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-8) Matte Tin no yes
LTC3410 1 2.5 5.5 0.3 0.8 yes SC70 300mA Synchronous Buck SC-70 2250 0.026 Burst Mode, 100% Duty Cycle 0.1 5.5 2 E Constant Frequency Current Mode 0.49 no Buck yes - - LTspice File,LTpowerCAD Model DC870A-A no no 2005-12-19 $1.56 (LTC3410ESC6-1.65) 5.3mm² (SC-70) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SC-70) Lead,Matte Tin no no
LTC3410-1.875 1 2.5 5.5 0.3 1.875 yes Fixed 1.875 Output SC-70 2250 0.026 Fixed Output, Burst Mode, 100% Duty Cycle 0.1 1.875 2 E Constant Frequency Current Mode 0.5 no Buck yes - - LTspice Model,LTpowerCAD Model - no no 2005-12-19 $1.56 (LTC3410ESC6-1.875) 5.3mm² (SC-70) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SC-70) Lead,Matte Tin no no
LTC3410B 1 2.5 5.5 0.3 0.8 yes LTC3410B Disables Burst Mode SC-70 2250 0.2 100% Duty Cycle 0.1 5.5 2 E Constant Frequency Current Mode 0.49 no Buck yes - - LTspice File,LTpowerCAD Model DC870A-B no no 2005-12-19 $1.56 (LTC3410BESC6-1.8) 5.3mm² (SC-70) Internal Power Switch Buck 1mm (SC-70) Matte Tin,Lead no no
LTC3411A 1 2.5 5.5 1.25 0.8 yes 1.25A, 4MHz, Synchronous Step-Down 3x3 DFN-10,MS-10 4000 0.04 Burst Mode, External Synchronization, Resistor Set Frequency, Power Good, 100% Duty Cycle 0.1 5.5 2 Up to 4MHz 400kHz to 4MHz E,I Constant Frequency Current Mode 2.1 no Buck yes - - LTspice File,LTpowerCAD File DC1176A no no 2002-04-05 $2.00 (LTC3411AEDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10) Matte Tin no yes
LTC3417A 2 2.25 5.5 1.5 0.8 yes LTC3417A Offers Improved Channel Matching 5x3 DFN-16,TSSOP-20 4000 0.125 Anti-Phase Switching, Resistor Set Frequency, Burst Mode, Power Good, 100% Duty Cycle 0.1 5.5 600kHz - 4MHz E,I Constant Frequency Current Mode 2.5 no Buck yes Buck Buck 1 .8 - LTspice Model,LTpowerCAD File - no no 2005-11-10 $3.37 (LTC3417AIDHC-1) 15mm² (5x3 DFN-16),42.2mm² (TSSOP-20) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (5x3 DFN-16),1.2mm (TSSOP-20) Lead,Matte Tin no yes
LTC3419 2 2.5 5.5 0.6 0.6 yes Dual 600mA Buck, LTC3419-1 Fixed 1.575/1.8Vout 3x3 DFN-8,MS-10 2250 0.035 Burst Mode, 100% Duty Cycle 0.1 5.5 2 E,I Constant Frequency Current Mode 1.2 no Buck yes Buck Buck 0.6 0.6 - LTspice File,LTpowerCAD Model DC1128A no no 2007-04-26 $1.95 (LTC3419EDD-1) 9mm² (3x3 DFN-8),14.7mm² (MS-10) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 DFN-8),1.1mm (MS-10) Matte Tin no yes
LTC3447 1 2.5 5.5 0.6 0.69 yes I2C Controllable Buck Regulator 3x3 DFN-10 1000 0.033 I2C Control, Burst Mode 0.1 2.05 3 E Constant Frequency Current Mode 1 no Buck yes - - - DC767A no no 2005-06-24 $1.95 (LTC3447EDD) 9mm² (3x3 DFN-10) Digitally Programmable Regulators,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10) Lead,Matte Tin no no
LTC3448 1 2.5 5.5 0.6 0.6 yes LDO Mode for Low Noise Operation 3x3 DFN-8,MS-8 2250 0.032 - 0.1 5.2 2.5 E Constant Frequency Current Mode 1 no Buck yes - - LTspice File DC840A no no 2005-06-17 $2.05 (LTC3448EDD) 9mm² (3x3 DFN-8),14.7mm² (MS-8) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-8),1.1mm (MS-8) Lead,Matte Tin no no
LTC3541 2 2.7 5.5 0.5 0.8 yes 500mA Buck + 300mA VLDO, LTC3541 Buck Powers Up First 3x3 DFN-10 2250 0.285 LDO, Sequencing, 100% Duty Cycle 0.1 5 2.5 E Constant Frequency Current Mode 0.95 no Buck, LDO yes Buck LDO 0.3 0.4 4.1 - LTspice File DC970A-A no no 2007-02-13 $1.89 (LTC3541EDD) 9mm² (3x3 DFN-10) Buck Regulator Plus LDO,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (3x3 DFN-10) Matte Tin no no
LTC3541-1 2 2.7 5.5 0.5 0.8 yes 500mA Buck + 300mA VLDO, LTC3541-1 LDO Powers Up First 3x3 DFN-10 2250 0.315 LDO, Sequencing, 100% Duty Cycle 0.1 5 2.5 E Constant Frequency Current Mode 0.95 no Buck, LDO yes Buck LDO .3 0.4 4.1 - LTspice Model DC970A-B no no 2007-02-13 $1.89 (LTC3541EDD-1) 9mm² (3x3 DFN-10) Buck Regulator Plus LDO,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (3x3 DFN-10) Matte Tin no no
LTC3541-2 2 2.7 5.5 0.5 1.875 yes 500mA Buck + 300mA VLDO, LTC3541-2 Buck Powers Up First, 1.875V Fixed Vout 3x3 DFN-10 2250 0.285 LDO, Sequencing, 100% Duty Cycle 0.1 1.875 2.5 E Constant Frequency Current Mode 0.95 no Buck, LDO yes Buck LDO 0.3 1.5 1.5 - LTspice Model - no no 2007-02-13 $1.89 (LTC3541EDD-2) 9mm² (3x3 DFN-10) Buck Regulator Plus LDO,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (3x3 DFN-10) Matte Tin no no
LTC3541-3 2 2.7 5.5 0.5 1.8 yes 500mA Buck + 300mA VLDO, LTC3541-3 LDO Powers Up First, 1.8V Fixed Vout 3x3 DFN-10 2250 0.285 LDO, Sequencing, 100% Duty Cycle 0.1 1.8 2.5 E Constant Frequency Current Mode 0.95 no Buck, LDO yes Buck LDO 0.3 1.575 1.575 - LTspice Model - no no 2007-02-13 $1.89 (LTC3541EDD-3) 9mm² (3x3 DFN-10) Buck Regulator Plus LDO,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (3x3 DFN-10) Matte Tin no no
LTC3542 1 2.5 5.5 0.5 0.6 yes LTC3542-1 Has Fixed 2.8V Output 2x2 DFN-6,SOT-23 2250 0.026 External Synchronization, Burst Mode, 100% Duty Cycle 0.1 5.5 2 1MHz - 3MHz E,I Constant Frequency Current Mode 1 no Buck yes - - LTspice File DC993A no no 2006-10-12 $1.60 (LTC3542EDC) 4mm² (2x2 DFN-6),8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x2 DFN-6),1mm (SOT-23) Lead,Matte Tin no yes
LTC3543 1 2.5 5.5 0.6 0.6 yes Spread Spectrum 2x3 DFN-6 2250 0.045 Burst Mode, External Synchronization, PLL, Spread Spectrum, 100% Duty Cycle 0.1 5.5 2 1MHz - 3MHz E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model DC1008A no no 2006-12-19 $1.95 (LTC3543EDCB) 6mm² (2x3 DFN-6) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x3 DFN-6) Matte Tin no no
LTC3544 4 2.25 5.5 0.3 0.8 yes Quad Step-Down: 300mA, 200mA, 200mA, 100mA 3x3 QFN-16 2.25 0.07 Burst Mode, 100% Duty Cycle 0.1 5.5 2 E Constant Frequency Current Mode 0.6 no Buck yes Buck Buck 0.2 0.8 5.5 Buck 0.2 0.8 5.5 Buck 0.1 LTspice File DC1040A-A no no 2007-05-26 $2.95 (LTC3544EUD) 9mm² (3x3 QFN-16) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 QFN-16) Matte Tin no no
LTC3544B 4 2.25 5.5 0.3 0.8 yes LTC3544B Disables Burst Mode 3x3 QFN-16 2250 0.825 100% Duty Cycle 0.1 5.5 2 E Constant Frequency Current Mode 0.6 no Buck yes Buck Buck 0.2 0.8 5.5 Buck 0.2 0.8 5.5 Buck 0.1 LTspice Model DC1040A-B no no 2007-03-19 $2.95 (LTC3544BEUD) 9mm² (3x3 QFN-16) Internal Power Switch Buck,Multiple Output Buck 0.75mm (3x3 QFN-16) Matte Tin no no
LTC3545 3 2.25 5.5 0.8 0.6 yes Triple 800mA Synchronous Step-Down Regulator 3x3 QFN-16 2250 0.058 Burst Mode, External Synchronization, Power Good, 100% Duty Cycle 0.1 5.5 2 1MHz - 3MHz E,I Constant Frequency Current Mode 1.3 no Buck yes Buck Buck 0.8 0.6 5.5 Buck .8 0.6 5.5 LTspice File DC1193A-A,DC1193A-B no no 2008-01-18 $3.10 (LTC3545EUD-1) 9mm² (3x3 QFN-16) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 QFN-16) Matte Tin no yes
LTC3547 2 2.5 5.5 0.3 0.6 yes Dual Monolithic 300mA Synchronous Step-Down 3x2 DFN-8 2250 0.04 Fixed Output, 100% Duty Cycle 0.1 5.5 2 E Constant Frequency Current Mode 0.55 no Buck yes Buck Buck 0.3 0.6 - LTspice File,LTpowerCAD File DC1013A no no 2006-09-12 $1.95 (LTC3547EDDB-1) 6mm² (3x2 DFN-8) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x2 DFN-8) Lead,Matte Tin no no
LTC3547B 2 2.5 5.5 0.3 0.6 yes LTC3547B Disables Burst Mode 3x2 DFN-8 2250 0.45 Fixed Output, 100% Duty Cycle 0.1 5.5 2 E,I Constant Frequency Current Mode 0.55 no Buck yes Buck Buck 0.3 0.6 - LTspice Model,LTpowerCAD Model DC1013A no no 2006-09-12 $1.95 (LTC3547BEDDB-1) 6mm² (3x2 DFN-8) Internal Power Switch Buck,Multiple Output Buck 0.75mm (3x2 DFN-8) Lead,Matte Tin no yes
LTC3548-1 2 2.5 5.5 0.8 1.575 yes 29ms POR Delay, LTC3548-1 Fixed 1.8V/1.575Vot 3x3 DFN-10,3x3 UTDFN-10 2250 0.04 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 1.8 2 E Constant Frequency Current Mode 1.2 no Buck yes Buck Buck 0.4 1.8 - LTspice Model - no no 2005-03-18 $2.60 (LTC3548EDD-1) 9mm² (3x3 UTDFN-10),9mm² (3x3 DFN-10) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.55mm (3x3 UTDFN-10),0.75mm (3x3 DFN-10) Lead,Matte Tin no no
LTC3548-2 2 2.5 5.5 0.8 0.6 yes 29ms POR Delay, LTC3548-2 Fixed 1.2V/Adj. Vout 3x3 DFN-10 2250 0.04 Burst Mode, Fixed Output, 100% Duty Cycle 0.1 5.5 2 E Constant Frequency Current Mode 1.2 no Buck yes Buck Buck 0.4 1.8 - LTspice Model - no no 2005-03-18 $2.60 (LTC3548EDD-2) 9mm² (3x3 DFN-10) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 DFN-10) Lead,Matte Tin no no
LTC3548A 2 2.5 5.5 0.8 0.6 yes LTC3548A Improved ESD, Burst Mode, 116ms POR Delay 3x3 DFN-10,MS-10E 2250 0.04 Burst Mode, External Synchronization, 100% Duty Cycle 0.1 5 2 1.8MHz - 2.7MHz E,I Constant Frequency Current Mode 1.2 no Buck yes Buck Buck 0.4 0.6 - LTspice Model - no no 2005-03-18 $2.60 (LTC3548AEDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LTC3549 1 1.6 5.5 0.25 0.611 yes 100% Duty Cycle 2x3 DFN-6 2250 0.05 Burst Mode, 100% Duty Cycle 0.1 5.5 2 E Constant Frequency Current Mode 0.45 no Buck yes - - LTspice File,LTpowerCAD File DC992A no no 2006-09-21 $1.44 (LTC3549EDCB) 6mm² (2x3 DFN-6) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x3 DFN-6) Matte Tin no no
LTC3560 1 2.5 5.5 0.8 0.6 yes 100% Duty Cycle SOT-23 2250 0.016 Burst Mode, External Synchronization, 100% Duty Cycle 0.1 5.5 3 1MHz - 3MHz E,I Constant Frequency Current Mode 1.5 no Buck yes - - LTspice File DC1025A no no 2006-12-14 $1.90 (LTC3560ES6) 8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 1mm (SOT-23) Lead,Matte Tin no yes
LTC3561A 1 2.5 5.5 1 0.8 yes 100% Duty Cycle 3x3 DFN-8 4000 0.33 Burst Mode, Resistor Set Frequency, 100% Duty Cycle 0.1 5 2 200kHz to 4MHz E,I Constant Frequency Current Mode 2 no Buck yes - - LTspice File,LTpowerCAD Model DC1072B no no 2008-08-06 $1.75 (LTC3561AEDD) 9mm² (3x3 DFN-8) Internal Power Switch Buck 0.75mm (3x3 DFN-8) Matte Tin no yes
LTC3563 1 2.5 5.5 0.5 1.28 yes Selectable Output Voltage 2x2 DFN-6 2250 0.026 Fixed Output, Burst Mode, 100% Duty Cycle 0.1 1.87 2 E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model - no no 2007-02-06 $1.60 (LTC3563EDC) 4mm² (2x2 DFN-6) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x2 DFN-6) Lead,Matte Tin no no
LTC3564 1 2.5 5.5 1.25 0.6 yes 100% Duty Cycle 2x3 DFN-6,SOT-23 2250 0.02 Burst Mode, 100% Duty Cycle 0.1 5.5 2 E,I Constant Frequency Current Mode 2 no Buck yes - - LTspice File DC1158A,DC1343A no no 2008-06-11 $1.95 (LTC3564EDCB) 6mm² (2x3 DFN-6),8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x3 DFN-6),1mm (SOT-23) Matte Tin no no
LTC3565 1 2.5 5.5 1.25 0.6 yes 100% Duty Cycle 3x3 DFN-10,MS-10E 4000 0.04 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, 100% Duty Cycle 0.1 5.5 2 400kHz - 4MHz 400kHz - 4MHz E,I Constant Frequency Current Mode 2.1 no Buck yes - - LTspice File,LTpowerCAD File DC1159A no no 2009-01-07 $2.00 (LTC3565EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LTC3568 1 2.5 5.5 1.8 0.8 yes Selectable Burst Mode Operation 3x3 DFN-10 4000 0.062 Burst Mode, External Synchronization, 100% Duty Cycle 0.1 5 0.4MHz - 4MHz E,I Constant Frequency Current Mode 3 no Buck yes - - LTspice File,LTpowerCAD File DC1206A no no 2007-04-26 $2.95 (LTC3568EDD) 9mm² (3x3 DFN-10) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10) Matte Tin no yes
LTC3569 3 2.5 5.5 1.2 0.425 yes Triple Buck Regulator with 1.2A and Two 600mA Outputs 3x3 QFN-20,3x4 QFN-20,TSSOP-16 2250 0.022 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, 100% Duty Cycle 0.1 5.5 2 1MHz - 3MHz 1.2MHz - 3MHz E,I Constant Frequency Current Mode 2 no Buck yes Buck Buck 0.6 0.425 5.5 Buck 0.6 0.425 5.5 LTspice File DC1340A no no 2009-01-05 $3.10 (LTC3569EUD) 9mm² (3x3 QFN-20),12mm² (3x4 QFN-20),32.6mm² (TSSOP-16) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x4 QFN-20),0.75mm (3x3 QFN-20),1.1mm (TSSOP-16) Lead,Matte Tin no yes
LTC3606B 1 2.5 5.5 0.8 0.6 yes 800mA Synchronous Step-Down DC/DC with Average Input Current Limit 3x3 DFN-8 2500 0.42 Programmable Input Current Limit, Power Good, 100% Duty Cycle 0.1 5 3 E,I Constant Frequency Current Mode 2.4 no Buck yes - - LTspice File - no no 2009-10-13 $2.10 (LTC3606BEDD) 9mm² (3x3 DFN-8) Internal Power Switch Buck,Supercapacitor Chargers 0.75mm (3x3 DFN-8) Matte Tin no yes
LTC3607 2 4.5 15 0.6 0.6 yes Dual 600mA 15V Monolithic Synchronous Step-Down 3x3 QFN-16,MS-16E 4000 0.035 Burst Mode, Power Good, External Synchronization, 100% Duty Cycle 0.1 15 2 1MHz to 4MHz E,I Constant Frequency Current Mode 1 no Buck yes Buck Buck 0.6 0.6 - LTspice File,LTpowerCAD File DC1596A,DC1847A no no 2013-08-07 $2.35 (LTC3607EUD) 9mm² (3x3 QFN-16),19.8mm² (MS-16E) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (3x3 QFN-16),1.1mm (MS-16E) Matte Tin no no
LTC3612 1 2.25 5.5 3 0.6 yes 3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter 3x4 QFN-20,TSSOP-20 4000 0.070 Burst Mode, DDR Mode, Active Voltage Positioning, 100% Duty Cycle 0.1 5.5 1.5 Up to 4MHz Up to 4MHz E,I,H,MP Constant Frequency Current Mode 6 no Buck yes - - LTspice File,LTpowerCAD File DC1310A,DC1574A no no 2009-07-28 $3.10 (LTC3612EUDC) 12mm² (3x4 QFN-20),42.2mm² (TSSOP-20) DDR Memory/Bus Termination,Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x4 QFN-20),1.2mm (TSSOP-20) Matte Tin no yes
LTC3614 1 2.25 5.5 4 0.6 yes 4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter 3x5 QFN-24 4000 0.075 Burst Mode, Resistor Set Frequency, Tracking, DDR Mode, Power Good, 100% Duty Cycle 0.1 5.5 Up to 4MHz E,I,H,MP Constant Frequency Current Mode 9 no Buck yes - - LTspice File,LTpowerCAD File DC1467A no no 2010-04-01 $3.45 (LTC3614EUDD) 15mm² (3x5 QFN-24) DDR Memory/Bus Termination,Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x5 QFN-24) Matte Tin,Lead no yes
LTC3615 2 2.25 5.5 3 0.6 yes Selectable 0°/90°/180° (LTC3615) or 140°/180° (LTC3615-1) 4x4 QFN-24,TSSOP-24 4000 0.13 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Anti-Phase Switching, DDR Mode, 100% Duty Cycle 0.1 5.5 Up to 4MHz Up to 4MHz E,I,H,MP Constant Frequency Current Mode 6 no Buck yes Buck Buck 3 0.6 - LTspice File,LTpowerCAD File DC1435A,DC1572A no no 2010-04-21 $3.95 (LTC3615EUF-1) 16mm² (4x4 QFN-24),50.6mm² (TSSOP-24) DDR Memory/Bus Termination,Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (4x4 QFN-24),1.2mm (TSSOP-24) Matte Tin,Lead no yes
LTC3616 1 2.25 5.5 6 0.6 yes 6A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter 3x5 QFN-24 4000 0.075 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, DDR Mode, 100% Duty Cycle 0.1 5.5 Up to 4MHz Up to 4MHz E,I,H,MP Constant Frequency Current Mode 12 no Buck yes - - LTspice File,LTpowerCAD File DC1461A no no 2010-02-16 $3.80 (LTC3616EUDD) 15mm² (3x5 QFN-24) DDR Memory/Bus Termination,Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x5 QFN-24) Matte Tin no yes
LTC3619 2 2.5 5.5 0.8 0.6 yes 400mA/800mA Synchronous Step-Down 3x3 DFN-10,MS-10E 2250 0.05 Programmable Input Current Limit, Burst Mode, Power Good, 100% Duty Cycle 0.1 5 3 E,I Constant Frequency Current Mode 1.6 no Buck yes Buck Buck 0.4 0.6 - LTspice Model DC1489A-A no no 2009-09-22 $2.25 (LTC3619EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck,Supercapacitor Chargers 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LTC3619B 2 2.5 5.5 0.8 0.6 yes 400mA/800mA Synchronous Step-Down 3x3 DFN-10,MS-10E 2250 0.6 Programmable Input Current Limit, Power Good, 100% Duty Cycle 0.1 5 3 E,I Constant Frequency Current Mode 2.4 no Buck yes Buck Buck 0.4 0.6 - LTspice File DC1489A-B no no 2009-09-10 $2.25 (LTC3619BEDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck,Multiple Output Buck,Supercapacitor Chargers 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LTC3621 1 2.7 17 1 0.6 yes 3.5uA IQ, LTC3621-X Offer 1MHz/2.25MHz or 3.3V/5V Fixed Vout 2x3 DFN-6,MS-8 2250 0.0035 Burst Mode, Power Good, 100% Duty Cycle 0.1 17 1.5 1MHz (LTC3621) or 2.25MHz (LTC3621-2) Fixed E,I,H Constant Frequency Current Mode 1.6 no Buck yes - - LTspice File,LTpowerCAD File DC1863A,DC1864A yes no 2013-03-19 $2.55 (LTC3621EDCB-25) 6mm² (2x3 DFN-6),14.7mm² (MS-8) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x3 DFN-6),1.1mm (MS-8) Matte Tin,Lead no yes
LTC3622 2 2.7 17 1 0.6 yes IQ = 5μA, LTC3622 1MHz, LTC3622-2 2.2MHz, -23/25 Fixed Vout 3.3/5V 4x3 DFN-14,MS-16 2200 0.005 Burst Mode, 100% Duty Cycle, External Synchronization, 0.1 17 1.5 1MHz (LTC3622) or 2.25MHz (LTC3622-2) Fixed 500kHz - 3.3MHz E,I,H Constant Frequency Current Mode 1.8 no Buck yes Buck Buck 1 0.6 17 LTspice File,LTpowerCAD File DC2003A,DC2004A yes no 2014-06-03 $3.75 (LTC3622EMSE) 12mm² (4x3 DFN-14),19.8mm² (MS-16) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (4x3 DFN-14),1.1mm (MS-16) Matte Tin no yes
LTC3624 1 2.7 17 2 0.6 yes 3.5uA IQ, LTC3621-X Offer 1MHz/2.25MHz or 3.3V/5V Fixed Vout 3x3 DFN-8,MS-12E 2250 0.0035 Burst Mode, 100% Duty Cycle, External Synchronization 0.1 17 1.5 1MHz or 2.25MHz E,I,H Constant Frequency Current Mode 3 no Buck yes Buck - - LTspice File,LTpowerCAD File DC2005A,DC2359A yes no 2014-02-03 $2.95 (LTC3624EDD-5) 9mm² (3x3 DFN-8),19.8mm² (MS-12E) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-8),1.1mm (MS-12E) Matte Tin no yes
LTC3418 1 2.25 5.5 8 0.8 yes Tracking, 100% Duty Cycle 5x7 QFN-38 4000 0.38 Burst Mode, Tracking, Resistor Set Frequency, External Synchronization, Power Good, 100% Duty Cycle 0.03 5.5 300kHz - 4MHz 300kHz - 4MHz E Constant Frequency Current Mode 17 no Buck yes - - LTspice File,LTpowerCAD File DC785A no no 2005-03-04 $5.73 (LTC3418EUHF) 35mm² (5x7 QFN-38) Internal Power Switch Buck 0.75mm (5x7 QFN-38) Lead,Matte Tin no no
LTC3412A 1 2.25 5.5 3 0.8 yes 3A, 4MHz, Monolithic Synchronous Step-Down 4x4 QFN-16,TSSOP-16 4000 0.064 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, 100% Duty Cycle 0.02 5.5 300kHz - 4MHz 300kHz - 4MHz E,I,MP Constant Frequency Current Mode 6 no Buck yes - - LTspice File,LTpowerCAD File DC652A no no 2002-07-11 $3.45 (LTC3412AEFE) 16mm² (4x4 QFN-16),32.6mm² (TSSOP-16) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (4x4 QFN-16),1.1mm (TSSOP-16) Lead,Matte Tin no yes
LTC3414 1 2.3 5.5 4 0.8 yes Synchronous, 100% Duty Cycle TSSOP-20 4000 0.064 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, 100% Duty Cycle 0.02 5.5 300kHz - 4MHz 300kHz - 4MHz E,I,MP Constant Frequency Current Mode 8 no Buck yes - - LTspice Model,LTpowerCAD File DC556A no no 2003-04-18 $4.25 (LTC3414EFE) 42.2mm² (TSSOP-20) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 1.2mm (TSSOP-20) Lead,Matte Tin no yes
LTC3416 1 2.25 5.5 4 0.8 yes 4A, 4MHz, Monolithic Synchronous Step-Down Regulator with Tracking TSSOP-20 4000 0.03 Resistor Set Frequency, Power Good, Tracking 0.02 5.5 300kHz - 4MHz E Constant Frequency Current Mode 8 no Buck yes LTspice Model,LTpowerCAD File DC667A no no 2004-03-09 $4.62 (LTC3416EFE) 42.2mm² (TSSOP-20) Internal Power Switch Buck 1.2mm (TSSOP-20) Lead,Matte Tin no no
LT1913 1 3.6 25 3.5 0.79 no 3x3 DFN-10 2400 0.45 Resistor Set Frequency, External Synchronization, Power Good 0.01 24.25 200kHz - 2.4MHz 250kHz - 2MHz E,I Constant Frequency Current Mode 5.4 no Buck yes - - LTspice File,LTpowerCAD Model DC1316A no no 2007-12-04 $3.65 (LT1913EDD) 9mm² (3x3 DFN-10) Internal Power Switch Buck 0.75mm (3x3 DFN-10) Matte Tin no no
LT1934 1 3.2 34 0.3 1.25 no LT1934 300mA Output Current 2x3 DFN-6,SOT-23 0.012 Burst Mode 0.01 28 1.6 Constant Off Time E,I Constant Off-Time Current Mode 0.4 no Buck yes - - LTspice File DC544A no no 2002-10-07 $2.26 (LT1934EDCB) 6mm² (2x3 DFN-6),8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x3 DFN-6),1mm (SOT-23) Matte Tin,Lead no yes
LT1934-1 1 3.2 34 0.3 1.25 no LT1934-1 Optimized For < 60mA Output Currents 2x3 DFN-6,SOT-23 0.012 Burst Mode 0.01 28 1.6 Constant Off Time E,I Constant Off-Time Current Mode 0.12 no Buck yes - - LTspice File DC544A no no 2002-10-07 $2.26 (LT1934EDCB-1) 6mm² (2x3 DFN-6),8.1mm² (SOT-23) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x3 DFN-6),1mm (SOT-23) Matte Tin,Lead no yes
LT3481 1 3.6 36 2 1.265 no Low Ripple Burst Mode, IQ<50μA 3x3 DFN-10,MS-10E 2800 0.05 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.01 20 300kHz - 2.8MHz 275kHz - 475kHz E,I,H Constant Frequency Current Mode 3.8 no Buck yes - - LTspice File,LTpowerCAD Model DC857A no no 2006-06-01 $3.25 (LT3481EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Lead,Matte Tin no yes
LT3493 1 3.6 36 1.2 0.78 no 1.2A Step Down, 3.6V to 36V Operating, 40V Maximum 2x3 DFN-6 750 1.9 - 0.01 34.2 1.9 E,I Constant Frequency Current Mode 1.75 no Buck yes - - LTspice File DC897A no no 2006-11-14 $2.71 (LT3493EDCB) 6mm² (2x3 DFN-6) High Input Voltage Buck,Internal Power Switch Buck 0.75mm (2x3 DFN-6) Lead,Matte Tin no yes
LT3503 1 3.6 20 1 0.78 no 2x3 DFN-6 2200 1.9 - 0.01 16.2 1.9 E Constant Frequency Current Mode 1.75 no Buck yes - - LTspice File DC1050A no no 2006-10-20 $2.25 (LT3503EDCB) 6mm² (2x3 DFN-6) Internal Power Switch Buck 0.75mm (2x3 DFN-6) Lead,Matte Tin no no
LT3504 4 3.2 40 1 0.8 no Quad 1A Buck, On-Chip Boost Allows 100% Duty Cycle 4x5 QFN-28 2200 2.7 100% Duty Cycle, Resistor Set Frequency, External Synchronization, Anti-Phase Switching, Tracking 0.01 40 2 250kHz - 2.2MHz 350kHz - 2.2MHz E,I Constant Frequency Current Mode 1.75 no Buck yes Buck Buck 1 0.8 40 Buck 1 0.8 40 Buck 1 LTspice File DC1207A no no 2012-07-06 $3.50 (LT3504EUFD) 20mm² (4x5 QFN-28) Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28) Matte Tin no yes
LT3505 1 3.6 36 1.2 0.78 no 3x3 DFN-8,MS-8 3000 2 Resistor Set Frequency 0.01 33.84 1.9 200kHz - 3MHz E,I Constant Frequency Current Mode 1.75 no Buck yes - - LTspice File,LTpowerCAD Model DC1023A,DC1395A no no 2006-08-28 $2.40 (LT3505EDD) 9mm² (3x3 DFN-8),14.7mm² (MS-8) Internal Power Switch Buck 0.75mm (3x3 DFN-8),1.1mm (MS-8) Lead,Matte Tin no yes
LT3514 3 3.2 36 2 0.8 no Triple Step-Down (2A, 1A, 1A) with 100% Duty Cycle 4x5 QFN-28,TSSOP-24 2200 2.7 Resistor Set Frequency, External Synchronization, Anti-Phase Switching, Tracking, 100% Duty Cycle, Power Good 0.01 36 2 350kHz to 2.2MHz 350kHz to 2.2MHz E,I Constant Frequency Current Mode 3.5 no Buck yes Buck Buck 1 0.8 36 Buck 1 0.8 36 LTspice File DC1980A no no 2013-08-05 $3.50 (LT3514EUFD) 20mm² (4x5 QFN-28),50.6mm² (TSSOP-24) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Multiple Output Buck 0.75mm (4x5 QFN-28),1.2mm (TSSOP-24) Matte Tin no no
LT3663 1 7 36 1.2 0.8 no LT3663 1.5MHz, LT3663-X Fixed 5V/3.3Vout and 1MHz 2x3 DFN-8,MS-8 1500 2.4 Programmable Output Current Limit 0.01 5.5 2 E,I,H Constant Frequency Current Mode 2 no Buck yes - - LTspice File DC1419A,DC1570A-A,DC1570A-B no no 2009-07-20 $2.50 (LT3663EDCB-3.3) 6mm² (2x3 DFN-8),14.7mm² (MS-8) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck 0.75mm (2x3 DFN-8),1.1mm (MS-8) Matte Tin no yes
LT3682 1 3.6 36 1 0.8 no 60V Transient Protection, Low Ripple Burst Mode 3x3 DFN-12 2200 0.075 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.01 20 2 250kHz - 2.2MHz 300kHz - 2.2MHz E,I Constant Frequency Current Mode 1.7 no Buck yes - - LTspice File,LTpowerCAD Model DC1222A no no 2008-12-15 $2.95 (LT3682EDD) 9mm² (3x3 DFN-12) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 DFN-12) Matte Tin no yes
LT3684 1 3.6 36 2 1.265 no 3x3 DFN-10,MS-10E 2800 1.2 Power Good, Resistor Set Frequency 0.01 20 300kHz - 2.8MHz E,I Constant Frequency Current Mode 3.6 no Buck yes - - LTspice File,LTpowerCAD Model DC1188A no no 2007-03-19 $2.95 (LT3684EDD) 9mm² (3x3 DFN-10),14.7mm² (MS-10E) Internal Power Switch Buck 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3688 2 3.8 36 0.8 0.8 no Dual 800mA Step-Down, POR & Watchdog, Burst Mode 4x4 QFN-24,TSSOP-24 2200 0.065 Burst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External Synchronization 0.01 32.4 2 350kHz - 2.2MHz 350kHz - 2.2MHz E,I,H Constant Frequency Current Mode 1.7 no Buck yes Buck Buck 0.8 0.8 - LTspice File DC1439A no no 2011-01-25 $3.60 (LT3688EUF) 16mm² (4x4 QFN-24),50.6mm² (TSSOP-24) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (4x4 QFN-24),1.2mm (TSSOP-24) Matte Tin no yes
LT3689 1 3.4 38 0.7 0.8 no POR and Watchdog Timer 3x3 QFN-16,MS-16E 2200 0.05 Burst Mode, Resistor Set Frequency, External Synchronization, Watchdog Timer 0.01 34.2 1.5 350kHz - 2.2MHz 350kHz - 2.2MHz E,I,H Constant Frequency Current Mode 1.55 no Buck yes - - LTspice File DC1312A no no 2009-07-28 $3.20 (LT3689EUD) 9mm² (3x3 QFN-16),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 QFN-16),1.1mm (MS-16E) Matte Tin no yes
LT3689-5 1 3.4 38 0.7 5 no POR and Watchdog Timer, 5V Fixed Output 3x3 QFN-16,MS-16E 2200 0.05 Burst Mode, Resistor Set Frequency, External Synchronization, Watchdog Timer 0.01 5 2 350kHz - 2.2MHz 350kHz - 2.2MHz E,I,H Constant Frequency Current Mode 1.55 no Buck yes - - LTspice File DC1312A no no 2009-07-28 $3.20 (LT3689EUD-5) 9mm² (3x3 QFN-16),19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (3x3 QFN-16),1.1mm (MS-16E) Matte Tin no yes
LT3695 1 3.6 36 1 0.8 no 60V Transient Protection MS-16E 2200 0.075 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.01 20 1.875 250kHz - 2.2MHz 300kHz - 2.2MHz E,I,H Constant Frequency Current Mode 1.6 no Buck yes - - LTspice File DC1519A,DC1578A-A,DC1578A-B no no 2009-07-30 $3.25 (LT3695EMSE-3.3) 19.8mm² (MS-16E) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-16E) Matte Tin no yes
LT3980 1 3.6 58 2 0.79 no 80V Transient and Short-Circuit Protection, Low Ripple Burst Mode 4x3 DFN-14,MS-16E 2000 0.035 Burst Mode, External Synchronization, Power Good .01 57.42 250kHz - 2MHz E,I,H Constant Frequency Current Mode 4 no Buck yes - - LTspice File,LTpowerCAD Model DC1476A no no 2009-09-16 $3.55 (LT3980EDE) 12mm² (4x3 DFN-14),19.8mm² (MS-16E) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Matte Tin,Lead no yes
LT8471 2 2.6 50 1.6 0.789 no Dual, Multitopology (Buck/Boost/SEPIC/Inverter/Flyback) 4x5 QFN-28,TSSOP-20 2000 2.4 External Synchronization, Resistor Set Frequency, Anti-Phase Switching, Power Good 0.01 50 2 100kHz - 2MHz 100kHz - 2MHz E,I,H Constant Frequency Current Mode 2.55 no Buck, Boost, Sepic, Zeta, Flyback, Inverting yes Buck, Boost, Sepic, Zeta, Flyback, Inverting Buck, Boost, Sepic, Zeta, Flyback, Inverting 1.6 0.789 50 - LTspice File DC1854A yes no 2014-02-03 $3.75 (LT8471EFE) 20mm² (4x5 QFN-28),42.2mm² (TSSOP-20) Extended Temperature (H & MP) Switching Regulators,Flyback, Forward and Isolated Controllers,High Input Voltage Buck,Internal Power Switch Boost,Internal Power Switch Buck,Inverting Regulators,Multiple Output Boost,Multiple Output Buck,Multitopology DC/DC 0.75mm (4x5 QFN-28),1.2mm (TSSOP-20) Matte Tin no no
LTC1875 1 2.65 6 1.5 0.8 yes 100% Duty Cycle, Integrated PLL SSOP-16 550 0.015 Burst Mode, External Synchronization, Power Good, 100% Duty Cycle 0.01 6 350kHz - 750kHz E Constant Frequency Current Mode 2.15 no Buck yes - - LTspice Model DC432B no no 2001-12-03 $3.50 (LTC1875EGN) 30.9mm² (SSOP-16) Internal Power Switch Buck,Micropower Buck Regulators 1.75mm (SSOP-16) Lead,Matte Tin no no
LTC1877 1 2.65 10 0.6 0.8 yes 100% Duty Cycle MS-8 550 0.01 Burst Mode, External Synchronization, 100% Duty Cycle 0.01 10 2 400kHz - 700kHz E,I Constant Frequency Current Mode 1 no Buck yes - - LTspice Model DC290A-A no no 2000-05-03 $2.90 (LTC1877EMS8) 14.7mm² (MS-8) Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-8) Lead,Matte Tin no no
LTC1878 1 2.65 6 0.6 0.8 yes 100% Duty Cycle MS-8 550 0.01 Burst Mode, External Synchronization, 100% Duty Cycle 0.01 6 2 400kHz - 700kHz E Constant Frequency Current Mode 1 no Buck yes - - LTspice Model DC290A-B,DC348A no no 2000-05-18 $2.60 (LTC1878EMS8) 14.7mm² (MS-8) Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-8) Lead,Matte Tin no no
LTC3100 3 0.65 5 0.25 0.6 yes 700mA Boost, 250mA Buck, 100mA LDO 3x3 QFN-16 1500 0.015 Burst Mode, Power Good, LDO, Output Disconnect, Sequencing 0.01 5.25 1.5 E Constant Frequency Current Mode 0.45 no Buck, Boost, LDO yes Buck Boost 0.1 0.6 5.25 LDO 0.6 2.5 LTspice File DC1326A no no 2008-05-08 $3.10 (LTC3100EUD) 9mm² (3x3 QFN-16) Buck Regulator Plus LDO,Internal Power Switch Buck,Micropower Buck Regulators,Multitopology DC/DC 0.75mm (3x3 QFN-16) Matte Tin no no
LTC3404 1 2.65 6 0.6 0.8 yes 100% Duty Cycle MS-8 1400 0.01 Burst Mode, External Synchronization, 100% Duty Cycle 0.01 6 2 1MHz - 1.7MHz E,I,MP Constant Frequency Current Mode 1 no Buck yes - - LTspice Model,LTpowerCAD Model DC413A no no 2000-08-24 $2.70 (LTC3404EMS8) 14.7mm² (MS-8) Extended Temperature (H & MP) Switching Regulators,Internal Power Switch Buck,Micropower Buck Regulators 1.1mm (MS-8) Lead,Matte Tin no yes
LTC3417A-1 2 2.25 5.5 1.5 0.8 yes LTC3417A-1 Offers Power On Reset 5x3 DFN-16,TSSOP-20 4000 0.125 Anti-Phase Switching, External Synchronization, Resistor Set Frequency, Power On Reset, 100% Duty Cycle 0.01 5.5 600kHz to 4MHz 600kHz to 4MHz E,I Constant Frequency Current Mode 2.5 no Buck yes Buck Buck 1 .8 - LTspice Model,LTpowerCAD Model - no no 2005-11-10 $2.93 (LTC3417AEDHC-1) 15mm² (5x3 DFN-16),42.2mm² (TSSOP-20) Internal Power Switch Buck,Multiple Output Buck 0.75mm (5x3 DFN-16),1.2mm (TSSOP-20) Matte Tin no yes
LTC3417A-2 2 2.25 5.5 1.5 0.8 yes LTC3417A-2 Offers PGOOD 5x3 DFN-16,TSSOP-20 1500 0.125 Anti-Phase Switching, Burst Mode, External Synchronization, Resistor Set Frequency, Power Good, 100% Duty Cycle 0.01 5.5 600kHz - 4MHz 600kHz - 4MHz E,I Constant Frequency Current Mode 2.5 no Buck yes Buck Buck 1 .8 - LTspice Model,LTpowerCAD File DC1336A no no 2005-11-10 $2.93 (LTC3417AEDHC-2) 15mm² (5x3 DFN-16),42.2mm² (TSSOP-20) Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 0.75mm (5x3 DFN-16),1.2mm (TSSOP-20) Matte Tin no yes
LTC3520 2 2.2 5.5 1 0.8 yes Dual Output-Synchronous 1A Buck-Boost and a 600mA Buck 4x4 QFN-24 2000 0.055 Burst Mode, Resistor Set Frequency, Sequencing, LDO, Output Disconnect, 100% Duty Cycle 0.01 5.25 2.4 100kHz - 2MHz E,I Constant Frequency Current Mode no Buck-Boost, Buck, LDO yes Buck Buck-Boost .6 0.8 5.25 - LTspice Model DC1062A no no 2007-08-23 $3.50 (LTC3520EUF) 16mm² (4x4 QFN-24) Internal Power Switch Buck,Internal Power Switch Buck-Boost,Micropower Buck Regulators,Multitopology DC/DC 0.75mm (4x4 QFN-24) Matte Tin no yes
LTC3522 2 2.4 5.5 0.4 2.2 yes Dual Output Synchronous 400mA Buck-Boost and 200mA Buck 3x3 QFN-16 1000 0.025 Burst Mode, Power Good, Output Disconnect, 100% Duty Cycle 0.01 5.25 2 E Constant Frequency Current Mode no Buck-Boost, Buck yes Buck Buck-Boost .2 0.6 5.5 - LTspice Model DC1177A no no 2007-05-21 $2.50 (LTC3522EUD) 9mm² (3x3 QFN-16) Internal Power Switch Buck,Internal Power Switch Buck-Boost,Micropower Buck Regulators,Multitopology DC/DC 0.75mm (3x3 QFN-16) Matte Tin no no
LTC3620 1 2.9 5.5 0.015 0.6 yes Ultralow Power 15mA Synchronous Step-Down 2x2 DFN-8 0.018 Burst Mode 0.01 5.5 2 E Variable Frequency Current Mode 0.035 no Buck yes - - LTspice File DC1460A no no 2009-08-13 $1.95 (LTC3620EDC-1) 4mm² (2x2 DFN-8) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (2x2 DFN-8) Matte Tin no no
LT3493-3 1 6.8 36 1.2 0.78 no 1.2A Step Down, 6.8V to 36V Operating, 40V Maximum 2x3 DFN-6 750 1.9 - 0.001 34.2 1.9 E Constant Frequency Current Mode 1.75 no Buck yes - - LTspice Model - no no 2006-11-14 $2.71 (LT3493EDCB-3) 6mm² (2x3 DFN-6) High Input Voltage Buck,Internal Power Switch Buck 0.75mm (2x3 DFN-6) Lead,Matte Tin no no
LT3570 2 2.1 36 1.5 0.8 no 1.5A Buck, 1.5A Boost and LDO Controller 4x4 QFN-24,TSSOP-20 2500 3.2 Resistor Set Frequency, External Synchronization, LDO 0 36 500kHz - 2MHz Up to 2.5MHz E,I Constant Frequency Current Mode 2.4 no Buck, Boost, LDO yes Buck Boost, Sepic, Flyback 1 0.8 36 - .020 LTspice File DC1106A no no 2008-10-08 $2.95 (LT3570EUF) 16mm² (4x4 QFN-24),42.2mm² (TSSOP-20) Buck Regulator Plus LDO,Internal Power Switch Boost,Internal Power Switch Buck,Multitopology DC/DC 0.75mm (4x4 QFN-24),1.2mm (TSSOP-20) Matte Tin no yes
LT3681 1 3.6 36 2 1.265 no Integrated Power Schottky Diode 4x3 DFN-14 2800 0.05 Burst Mode, Resistor Set Frequency, Power Good 0 20 300kHz - 2.8MHz E Constant Frequency Current Mode 3.8 no Buck yes - - LTspice File,LTpowerCAD Model DC1122A no no 2007-06-06 $3.65 (LT3681EDE) 12mm² (4x3 DFN-14) Internal Power Switch Buck,Micropower Buck Regulators 0.75mm (4x3 DFN-14) Matte Tin no no
LTC3600 1 4 15 1.5 0 yes Single Resistor Sets VOUT, VOUT Down To Zero Volts 3x3 DFN-12,MS-12E 4000 0.7 Current Source Reference, Resistor Set Frequency, External Synchronization, Power Good, Tracking 0 14.5 200kHz - 4MHz 200kHz - 4MHz E,I Constant Frequency Current Mode 2 no Buck yes - - LTspice File,LTpowerCAD File DC1667A yes no 2011-12-13 $2.80 (LTC3600EDD) 9mm² (3x3 DFN-12),19.8mm² (MS-12E) Internal Power Switch Buck 0.75mm (3x3 DFN-12),1.1mm (MS-12E) Matte Tin no yes
LTC3623 1 4 15 5 0 yes 15V, ±5A Rail-to-Rail Synchronous Buck Regulator 3x5 QFN-24 4000 1.45 Silent Switcher Architecture, Source/Sink Current, Current Source Reference, Output Current Monitor, Resistor Set Frequency 0 14.5 1 400kHz - 4MHz 400kHz - 4MHz E,I Constant Frequency Controlled On-Time 6.2 no Buck yes Buck - DC2131A yes yes 2016-08-01 $3.95 (LTC3623EUDD) 15mm² (3x5 QFN-24) Internal Power Switch Buck 0.75mm (3x5 QFN-24) Matte Tin no no
LT3653 1 7.5 30 1.2 5 no Battery Charger Pre-Regulator with Adjustable Current Limit 2x3 DFN-8 1500 2.8 Programmable Output Current Limit 6 E,I Constant Frequency Current Mode 2 no Buck yes - - - DC1325A no no 2008-07-29 $2.50 (LT3653EDCB) 6mm² (2x3 DFN-8) Internal Power Switch Buck 0.75mm (2x3 DFN-8) Matte Tin no yes