Power Management Switching Regulator Step-Down (Buck) Regulators High Input Voltage Buck

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Number of Outputs Vin Min Vin Max Over Voltage Protection Output Current Monolithic Synchronous Packages Comments Frequency Isupply Features Vout Min Frequency Adjust Range Frequency Sync Range Integrated Inductor Ishutdown Switch Current Sense Resistor Polyphase Max Phases Architecture Topology Vout Max Vref Accuracy Over Temp Temp Range Topology 1 Topology 2 Output Current 2 Vout Min 2 Vout Max 2 Topology 3 Output Current 3 Vout Min 3 Vout Max 3 Output Current 4 Design Tools Demo Boards Featured New Date Added Price 1k* Product Category Package Area Package Height Terminal Finish Export Control Auto & Transport
Units V V V A yes/no yes/no kHz mA V yes/no µA A yes/no # V % A V V A V V A mm² mm yes/no
Selection
(hold Ctrl key to select multiple,
hold Shift key to select range)
LT1676 1 7.4 60 0.44 yes no N-8,SO-8 100 3.2 External Synchronization 1.24 100kHz - 250kHz no 2.5 0.7 no 1 Constant Frequency Current Mode Buck 51 1.2 C,I - - LTspice Model DC204A-A no no 1998-08-28 $2.60 (LT1676CN8) High Input Voltage Buck,Internal Power Switch Buck 31mm² (SO-8),65.7mm² (N-8) 1.75mm (SO-8),3.3mm (N-8) Lead,Matte Tin no yes
LT3990 1 4 60 0.35 yes no 3x3 DFN-10,MS-16E -3.3/-5 Fixed Output Versions 2200 0.0017 Burst Mode, Resistor Set Frequency, Power Good 1.21 200kHz - 2.2MHz no 0.7 0.7 no 1 Constant Frequency Current Mode Buck 25 2.1 E,I,H - - LTspice File,LTpowerCAD Model DC1471A yes no 2009-12-07 $2.55 (LT3990EDD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),19.8mm² (MS-16E) 0.75mm (3x3 DFN-10),1.1mm (MS-16E) Matte Tin no yes
LT3493 1 3.6 36 40 1.2 yes no 2x3 DFN-6 1.2A Step Down, 3.6V to 36V Operating, 40V Maximum 750 1.9 - 0.78 no 0.01 1.75 no 1 Constant Frequency Current Mode Buck 34.2 1.9 E,I - - LTspice File DC897A no no 2006-11-14 $2.71 (LT3493EDCB) High Input Voltage Buck,Internal Power Switch Buck 6mm² (2x3 DFN-6) 0.75mm (2x3 DFN-6) Lead,Matte Tin no yes
LT3493-3 1 6.8 36 40 1.2 yes no 2x3 DFN-6 1.2A Step Down, 6.8V to 36V Operating, 40V Maximum 750 1.9 - 0.78 no 0.001 1.75 no 1 Constant Frequency Current Mode Buck 34.2 1.9 E - - LTspice Model - no no 2006-11-14 $2.71 (LT3493EDCB-3) High Input Voltage Buck,Internal Power Switch Buck 6mm² (2x3 DFN-6) 0.75mm (2x3 DFN-6) Lead,Matte Tin no no
LTC3637 1 4 76 1 yes no 5x3 DFN-16,MS-16E 100% Duty Cycle 0.012 Burst Mode, 100% Duty Cycle, Programmable Output Current Limit 0.8 no 3 2.4 no Hysteretic Mode Control Buck 76 1 E,I,H,MP - - LTspice Model DC2056A no no 2013-12-20 $3.20 (LTC3637EDHC) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 15mm² (5x3 DFN-16),19.8mm² (MS-16E) 0.75mm (5x3 DFN-16),1.1mm (MS-16E) Matte Tin no no
LTC3638 1 4 140 0.25 yes no MS-16E 100% Duty Cycle 0.012 Burst Mode, 100% Duty Cycle, Pin Selectable Output Voltage 0.8 no 1.4 0.575 no Hysteretic Mode Control Buck 140 1 E,I,H,MP Buck - - LTspice File DC2057A no no 2014-01-15 $3.65 (LTC3638EMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no no
LTC3639 1 4 150 0.1 yes yes MS-16E 100% Duty Cycle, Pin-Strapped Fixed 1.8V/3.3V/5V or Adj VOUT 0.012 Burst Mode, Fixed Output, 100% Duty Cycle 0.8 no 1.4 0.23 no 1 Hysteretic Mode Control Buck 150 1 E,I,H,MP - - LTspice File DC1901A yes no 2013-04-15 $3.65 (LTC3639EMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LT3430-1 1 5.5 60 2.75 yes no TSSOP-16 100kHz Switching 100 1.5 External Synchronization 1.2 125kHz - 250kHz no 30 5 no 1 Constant Frequency Current Mode Buck, Inverting 54 E,I - - LTspice File,LTpowerCAD Model DC1200A,DC471A no no 2002-08-19 $4.95 (LT3430EFE-1) High Input Voltage Buck,Internal Power Switch Buck 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Matte Tin no yes
LT8630 1 3 100 0.6 yes yes TSSOP-20 100V, 0.6A Synchronous Micropower Buck High Efficiency Regulator 0.016 Burst Mode, Power Good 0.8 no 5 1.1 no Boundary Mode Control Buck 60 1.5 E,I LTspice File DC2504A no yes 2016-10-27 $3.60 (LT8630EFE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 42.2mm² (TSSOP-20) 1.2mm (TSSOP-20) Matte Tin no no
LT8631 1 3 100 1 yes yes TSSOP-20 100V, 1A Synchronous Micropower Step-Down Regulator 1000 0.0036 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.808 100kHz to 1MHz 100kHz to 1MHz no 5 2.1 no 1 Constant Frequency Current Mode Buck 60 1.48 E,I,H Buck 0.8 LTspice File,LTpowerCAD File DC2110A yes yes 2015-07-13 $3.60 (LT8631EFE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 42.2mm² (TSSOP-20) 1.2mm (TSSOP-20) Matte Tin no yes
LT1976 1 3.3 60 1.24 yes no TSSOP-16 100µA IQ, 200kHz Switching, /B Disables Burst Mode 200 0.1 Burst Mode, External Synchronization 1.2 230kHz - 600kHz no 1 2.4 no 1 Constant Frequency Current Mode Buck 54 2 E,I,H - - LTspice File DC481A,DC977A no no 2003-08-15 $3.50 (LT1976BEFE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT1977 1 3.3 60 1.24 yes no TSSOP-16 100µA IQ, 500kHz Switching 500 0.1 Burst Mode, External Synchronization 1.2 575kHz - 700kHz no 0.1 2.4 no 1 Constant Frequency Current Mode Buck 54 2 E,I - - LTspice Model DC639A no no 2004-06-30 $4.00 (LT1977EFE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3435 1 3.3 60 2.4 yes no TSSOP-16 100µA Quiescent Current 500 0.1 Burst Mode, External Synchronization, Power Good 1.25 575kHz - 700kHz no 0.1 5.2 no 1 Constant Frequency Current Mode Buck 54 E,I - - LTspice Model,LTpowerCAD Model DC613A no no 2005-09-28 $5.25 (LT3435EFE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3434 1 3.3 60 2.4 yes no TSSOP-16 100µA Quiescent Current 200 0.1 Burst Mode, External Synchronization 1.25 230kHz - 500kHz no 1 4.7 no 1 Constant Frequency Current Mode Buck 54 E,I - - LTspice Model,LTpowerCAD Model DC614A no no 2004-08-13 $5.25 (LT3434EFE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LTC3895 1 4 140 10 no yes TSSOP-38 150V Low IQ, Synchronous Step-Down DC/DC Controller 900 0.04 Burst Mode, 100% Duty Cycle, Resistor Set Frequency, External Synchronization, Power Good 0.8 50kHz to 900kHz 75kHz to 850kHz no 10 25 Rsense, DCR no 1 Constant Frequency Current Mode Buck 60 1.5 E,I,H Buck LTspice Model,LTpowerCAD Model DC2117A yes yes 2016-03-23 $4.70 (LTC3895EFE) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators 62.7mm² (TSSOP-38) 1.2mm (TSSOP-38) Matte Tin no yes
LT8611 1 3.4 42 2.5 yes yes 3x5 QFN-24 2.5µA Low Ripple Burst Mode 2200 0.0024 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Rail-to-Rail Current Sense Amplifier, Output Current Monitor 0.97 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 4.8 no 1 Constant Frequency Current Mode Buck 40 1.24 E,I - - LTspice File,LTpowerCAD Model DC1750A no no 2012-05-18 $3.80 (LT8611EUDD) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Step-Down (Buck) LED Drivers 15mm² (3x5 QFN-24) 0.75mm (3x5 QFN-24) Matte Tin no yes
LT8612 1 3.4 42 6 yes yes 3x6 QFN-28 2.5µA Low Ripple Burst Mode 2200 0.003 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.97 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 9.7 no 1 Constant Frequency Current Mode Buck 41.6 0.6 E,I - - LTspice File,LTpowerCAD File DC2010A,DC2132A no no 2013-12-10 $4.95 (LT8612EUDE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 18mm² (3x6 QFN-28) 0.75mm (3x6 QFN-28) Matte Tin,Lead no yes
LT8620 1 3.4 65 2 yes yes 3x5 QFN-24,MS-16E 2.5µA Low Ripple Burst Mode 2200 0.0025 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.97 200kHz to 2.2MHz 200kHz to 2.2MHz no 1 3.8 no 1 Constant Frequency Current Mode Buck 64.75 1.23 E,I,H,MP Buck LTspice File,LTpowerCAD File DC1992A yes no 2014-05-19 $3.75 (LT8620EMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 15mm² (3x5 QFN-24),19.8mm² (MS-16E) 0.75mm (3x5 QFN-24),1.1mm (MS-16E) Matte Tin no yes
LT8610 1 3.4 42 2.5 yes yes MS-16E 2.5µA Low Ripple Burst Mode Operation, LT8610 50ns Min On-Time 2200 0.0024 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking 0.97 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 4.8 no 1 Constant Frequency Current Mode Buck 40 1.24 E,I,H - - LTspice File,LTpowerCAD File DC1749A,DC1749B yes no 2012-05-18 $3.55 (LT8610EMSE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin,Lead no yes
LT8613 1 3.4 42 6 yes yes 3x6 QFN-28 2.5µA Low Ripple Burst Mode, Current Sense Amp and Monitor 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 0.97 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 9.7 no 1 Constant Frequency Current Mode Buck 41.58 1.23 E,I Buck LTspice File DC2011A yes no 2014-11-10 $5.20 (LT8613EUDE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Step-Down (Buck) LED Drivers 18mm² (3x6 QFN-28) 0.75mm (3x6 QFN-28) Matte Tin no yes
LT3971 1 4.3 38 1.2 yes no 3x3 DFN-10,MS-10E,MS-16E 2.5μA IQ, Integrated Boost & Catch Diodes 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization 1.19 200kHz - 2MHz 250kHz - 2MHz no 0.7 2.4 no 1 Constant Frequency Current Mode Buck 30 2.1 E,I - - LTspice File,LTpowerCAD Model DC1527A no no 2009-11-04 $2.75 (LT3971EDD) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),14.7mm² (MS-10E),19.8mm² (MS-16E) 0.75mm (3x3 DFN-10),1.1mm (MS-16E),1.1mm (MS-10E) Matte Tin no yes
LT3970 1 4.2 40 0.35 yes no 3x2 DFN-10,MS-10 2.5μA IQ, Integrated Boost & Catch Diodes, -3.3/-3.42/-5 Fixed Vout 2200 0.0017 Burst Mode, Resistor Set Frequency, Power Good 1.21 200kHz - 2.2MHz no 0.7 0.7 no 1 Constant Frequency Current Mode Buck 25 2 E,I,H - - LTspice File,LTpowerCAD Model DC1566A no no 2009-08-26 $2.35 (LT3970EDDB-3.3) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 6mm² (3x2 DFN-10),14.7mm² (MS-10) 0.75mm (3x2 DFN-10),1.1mm (MS-10) Matte Tin no yes
LT3971-3.3 1 4.3 38 1.2 yes no 3x3 DFN-10,MS-10E 2.5μA IQ, Integrated Boost & Catch Diodes, 3.3V Fixed Output 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Fixed Output 3.3 200kHz - 2MHz 250kHz - 2MHz no 0.7 2.4 no 1 Constant Frequency Current Mode Buck 3.3 2.1 E,I - - LTspice File,LTpowerCAD Model DC1527A no no 2009-11-04 $2.75 (LT3971EDD-3.3) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),14.7mm² (MS-10E) 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3971-5 1 4.3 38 1.2 yes no 3x3 DFN-10,MS-10E 2.5μA IQ, Integrated Boost & Catch Diodes, 5V Fixed Output 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Fixed Output 5 200kHz - 2MHz 250kHz - 2MHz no 0.7 2.4 no 1 Constant Frequency Current Mode Buck 5 2.1 E,I - - LTspice File,LTpowerCAD Model DC1527A no no 2009-11-04 $2.75 (LT3971EDD-5) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),14.7mm² (MS-10E) 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3430 1 5.5 60 2.75 yes no TSSOP-16 200kHz Switching 200 1.5 External Synchronization 1.2 228kHz - 700kHz no 30 5 no 1 Constant Frequency Current Mode Buck, Inverting 54 E,I - - LTspice File,LTpowerCAD Model DC1200A,DC471A no no 2002-08-19 $4.95 (LT3430EFE) High Input Voltage Buck,Internal Power Switch Buck 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3500 2 3 36 40 2 yes no 3x3 DFN-12,MS-16E 2A, 36V Step-Down with LDO Controller 2200 2.5 External Synchronization, Resistor Set Frequency, Power Good, LDO 0.8 250kHz - 2.2MHz 250kHz - 2.2MHz no 12 2.8 no 1 Constant Frequency Current Mode Buck, LDO 34.92 E,I,H Buck LDO 1 0.8 36 - LTspice File,LTpowerCAD Model DC1069A no no 2007-10-12 $3.25 (LT3500EDD) Buck Regulator Plus LDO,Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multitopology DC/DC 9mm² (3x3 DFN-12),19.8mm² (MS-16E) 0.75mm (3x3 DFN-12),1.1mm (MS-16E) Matte Tin no yes
LT3645 2 3.6 36 55 0.5 yes no 3x3 QFN-16,MS-12E 36V 500mA Step-Down Regulator and 200mA LDO 750 1.4 Overvoltage Protection, LDO, Power Good 0.8 no 0.01 1 no 1 Constant Frequency Current Mode Buck, LDO 16 E,I,H Buck LDO 0.2 0.8 - LTspice File,LTpowerCAD Model DC1428A no no 2011-05-02 $2.25 (LT3645EUD) Buck Regulator Plus LDO,Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Multitopology DC/DC 9mm² (3x3 QFN-16),19.8mm² (MS-12E) 0.75mm (3x3 QFN-16),1.1mm (MS-12E) Matte Tin no yes
LT3694 3 4 36 70 2.6 yes no 4x5 QFN-28,TSSOP-20 36V, 2.6A Monolithic Buck Regulator with Dual LDO 2500 1 LDO, Tracking, Resistor Set Frequency, External Synchronization 0.75 250kHz - 2.5MHz 250kHz - 2.5MHz no 0.1 4.9 no 1 Constant Frequency Current Mode Buck, LDO 16 2 E,I 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) Buck Regulator Plus LDO,High Input Voltage Buck,Internal Power Switch Buck,Multitopology DC/DC 20mm² (4x5 QFN-28),42.2mm² (TSSOP-20) 0.75mm (4x5 QFN-28),1.2mm (TSSOP-20) Matte Tin no yes
LT8608 1 3 42 1.5 yes yes MS-10E 42V, 1.5A Step-Down with 2.5μA Quiescent Current, Spread Spectrum 2200 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Power Good 0.778 200kHz to 2.2MHz 200kHz to 2.2MHz no 1 2.9 no Constant Frequency Current Mode Buck 41.5 2.5 E,I Buck LTspice File,LTpowerCAD File DC2458A yes yes 2016-04-01 $2.25 (LT8608EMSE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 14.7mm² (MS-10E) 1.1mm (MS-10E) Matte Tin no yes
LTC3126 1 2.4 42 2.5 yes yes 4x5 QFN-28,TSSOP-28 42V, 2.5A Synchronous Step-Down Regulator with No-Loss Input PowerPath 2200 0.0055 Dual Input, Ideal Diode, Prioritizer, Burst Mode, Power Good 0.818 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 3.9 no Constant Frequency Current Mode Buck 42 1.7 E,I,H Buck - DC2215A yes yes 2016-09-12 $6.25 (LTC3126EUFD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,PowerPath Controllers & Ideal Diodes 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no no
LT8609 1 3 42 2 yes yes MS-10E 42V, 2A Synchronous Step-Down Regulator with 2.5μA Quiescent Current 2200 0.0025 Burst Mode, Resistor Set Frequency, External Synchronization, Spread Spectrum, Tracking, Power Good 0.8 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 3.5 no 1 Constant Frequency Current Mode Buck 41.5 1.5 E,I,H Buck LTspice File,LTpowerCAD File DC2195A,DC2195B-A no no 2014-10-24 $2.40 (LT8609BEMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 14.7mm² (MS-10E) 1.1mm (MS-10E) Matte Tin no yes
LT8610AX 1 3.7 42 3.5 yes yes MS-16E 42V, 3.5A Synchronous Step-Down with Operation to 175°C 2200 0.026 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.97 200kHz to 2.2MHz 200kHz to 2.2MHz no 1 6.7 no Constant Frequency Current Mode Buck 39.7 2 X Buck LTspice Model,LTpowerCAD Model - no yes 2016-04-04 $125.00 (LT8610AXMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,X Grade Products 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no no
LT3431 1 5.5 60 2.75 yes no TSSOP-16 500kHz Switching Frequency 500 2.5 External Synchronization 1.2 580kHz - 700kHz no 30 5 no 1 Constant Frequency Current Mode Buck, Inverting 48 E,I - - LTspice File,LTpowerCAD Model DC549A no no 2003-03-27 $4.95 (LT3431EFE) High Input Voltage Buck,Internal Power Switch Buck 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LTC3891 1 4 60 15 no yes 3x4 QFN-20,TSSOP-20 50μA IQ, 60V Synchronous Step-Down Controller 900 0.05 DCR Current Sense, Resistor Set Frequency, External Synchronization, Burst Mode, Power Good 0.8 50kHz - 900kHz 75kHz - 750kHz no 14 15 Rsense, DCR no 1 Constant Frequency Current Mode Buck 24 1 E,I,H,MP - LTspice File,LTpowerCAD File DC1940A,DC1695B no no 2010-10-15 $3.47 (LTC3891EUDC) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators 12mm² (3x4 QFN-20),42.2mm² (TSSOP-20) 0.75mm (3x4 QFN-20),1.2mm (TSSOP-20) Matte Tin no yes
LT3686 1 3.6 37 55 1.2 yes no 3x3 DFN-10 55V Overvoltage Protection 2500 1.1 Resistor Set Frequency 0.8 300kHz - 2.5MHz no 0.1 2.3 no 1 Constant Frequency Current Mode Buck 30 1.875 E,I,H - - LTspice File,LTpowerCAD Model DC1323A no no 2009-11-13 $2.50 (LT3686EDD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 9mm² (3x3 DFN-10) 0.75mm (3x3 DFN-10) Matte Tin no yes
LTM8050 1 3.6 58 2 yes no 15mm x 9mm x 4.92mm BGA 58V, 2A Step-Down μModule Regulator 2400 0.035 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.8 100kHz to 2.4MHz 100kHz to 2.4MHz yes 0.01 4 no 1 Constant Frequency Current Mode Buck 24 E,I,MP Buck - LTspice File DC1723A no no 2013-07-31 $14.00 (LTM8050EY) Extended Temperature (H & MP) uModule Regulators,High Input Voltage Buck,Micropower Buck Regulators,uModule Buck Regulators 135mm² (15mm x 9mm x 4.92mm BGA) 4.92mm (15mm x 9mm x 4.92mm BGA) SAC305,Tin-Lead no no
LTM8064 1 6 58 6 yes yes 16mm x 11.9mm x 4.92mm BGA 58VIN, 6A CVCC Step-Down μModule Regulator 1000 2.5 Output Current Regulation, Resistor Set Frequency, External Synchronization 1.2 100kHz - 1MHz 100kHz - 1MHz yes 0.2 9.1 yes Constant Frequency Current Mode Buck 36 2 E,I Buck LTspice File DC2237A no yes 2016-02-22 $16.50 (LTM8064EY) High Input Voltage Buck,Supercapacitor Chargers,uModule Battery Chargers,uModule Buck Regulators 190.4mm² (16mm x 11.9mm x 4.92mm BGA) 4.92mm (16mm x 11.9mm x 4.92mm BGA) SAC305,Tin-Lead no no
LTC3886 (dual output) 2 4.5 60 15 no yes 7x8 QFN-52 60V Dual Output Step-Down Controller with Digital Power System Management 750 26 PMBus, EEPROM, Fault Logging, Supervisor, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, PolyPhase, External Synchronization 0.5 100kHz to 750kHz 100kHz to 750kHz no 15 Rsense, DCR yes 2, 4, 6 Constant Frequency Current Mode Buck 13.8 0.5 E,I Buck Buck 15 0.5 13.8 LTpowerCAD Model,Linduino File DC2155A-A,DC2277A,DC2155A-B yes yes 2015-07-20 $6.35 (LTC3886EUKG) Digital Power System Management,Digitally Programmable Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Multiple Output Buck 56mm² (7x8 QFN-52) 0.75mm (7x8 QFN-52) Matte Tin no yes
LTC3886 (single output) 1 4.5 60 30 no yes 7x8 QFN-52 60V Dual Output Step-Down Controller with Digital Power System Management 750 26 PMBus, EEPROM, Fault Logging, Supervisor, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, PolyPhase, External Synchronization 0.5 100kHz to 750kHz 100kHz to 750kHz no 30 Rsense, DCR yes 2, 4, 6 Constant Frequency Current Mode Buck 13.8 0.5 E,I Buck 0.5 13.8 LTpowerCAD Model,Linduino File DC2155A-A,DC2277A,DC2155A-B yes yes 2015-07-20 $6.35 (LTC3886EUKG) Digital Power System Management,Digitally Programmable Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Multiple Output Buck 56mm² (7x8 QFN-52) 0.75mm (7x8 QFN-52) Matte Tin no yes
LT3763 1 6 60 20 no yes TSSOP-28 60V High Current Step-Down LED Driver Controller 1000 1.7 True Color PWM Dimming, Resistor Set Frequency, External Synchronization, Output Current Regulation 2 200kHz - 1MHz 200kHz - 1MHz no 0.2 20 Rsense 1 Constant Frequency Current Mode Buck, LED Driver 55 3 E,I,H Buck LTspice File DC1831A yes no 2012-10-09 $4.45 (LT3763EFE) Extended Temperature (H & MP) LED Drivers,External Power Switch Buck Controllers,High Input Voltage Buck,Step-Down (Buck) LED Drivers 62.7mm² (TSSOP-28) 1.2mm (TSSOP-28) Matte Tin no no
LTC3864 1 3.5 60 5 no no 4x3 DFN-12,MS-12E 60V Low IQ Step-Down DC/DC Controller with 100% Duty Cycle 850 0.04 100% Duty Cycle, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.8 50kHz - 850kHz 75kHz - 750kHz no 7 5 Rsense no 1 Constant Frequency Current Mode Buck 60 1 E,I,H,MP - LTspice File,LTpowerCAD File DC1722A,DC2434A yes no 2012-10-23 $2.06 (LTC3864EDE) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators 12mm² (4x3 DFN-12),19.8mm² (MS-12E) 0.75mm (4x3 DFN-12),1.1mm (MS-12E) Matte Tin no yes
LTC3892-1 2 4.5 60 25 no yes TSSOP-28 60V Low IQ, Dual, 2-Phase Synch Buck Controller, Fixed ILIM 900 0.034 Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking 0.8 50kHz - 900kHz 75kHz - 850kHz no 3.6 25 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 59.4 1.5 E,I,H,MP Buck Buck 25 0.8 59.4 LTspice File,LTpowerCAD Model DC1998A,DC2190A-A,DC2190A-B,DC2493A no yes 2015-04-01 $4.82 (LTC3892EFE-1) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 62.7mm² (TSSOP-28) 1.2mm (TSSOP-28) Matte Tin no yes
LTC3892 (single output) 1 4.5 60 30 no yes 5x5 QFN-32 60V Low IQ, Dual, 2-Phase Synch Buck Controller, PGOOD, Select ILIM 900 0.034 Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.8 50kHz - 900kHz 75kHz - 850kHz no 3.6 30 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 59.4 1.5 E,I,H,MP Buck 0.8 59.4 LTspice File,LTpowerCAD Model DC1998A,DC2190A-A,DC2190A-B,DC2493A no yes 2015-04-01 $4.94 (LTC3892EUH) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 25mm² (5x5 QFN-32) 0.75mm (5x5 QFN-32) Matte Tin no yes
LTC3892 (dual output) 2 4.5 60 15 no yes 5x5 QFN-32 60V Low IQ, Dual, 2-Phase Synch Buck Controller, PGOOD, Select ILIM 900 0.034 Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.8 50kHz - 900kHz 75kHz - 850kHz no 3.6 15 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 59.4 1.5 E,I,H,MP Buck Buck 15 0.8 59.4 LTspice File,LTpowerCAD Model DC1998A,DC2190A-A,DC2190A-B,DC2493A no yes 2015-04-01 $4.94 (LTC3892EUH) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 25mm² (5x5 QFN-32) 0.75mm (5x5 QFN-32) Matte Tin no yes
LTC3892-2 2 4.5 60 25 no yes 5x5 QFN-32 60V Low IQ, Dual, 2-Phase Synch Buck Controller, PGOOD, Select ILIM, Pulse Skip 900 0.034 Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking 0.8 50kHz - 900kHz 75kHz - 850kHz no 3.6 25 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 59.4 1.5 E,I,H,MP Buck Buck 25 0.8 59.4 LTspice File,LTpowerCAD Model DC1998A,DC2190A-A,DC2190A-B,DC2493A no yes 2015-04-01 $4.94 (LTC3892EUH-2) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 25mm² (5x5 QFN-32) 0.75mm (5x5 QFN-32) Matte Tin no yes
LTC3899 3 4.5 60 15 no yes 5x7 QFN-38,TSSOP-38 60V Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller 900 0.039 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking 0.8 75kHz - 850kHz 50kHz - 900kHz no 3.6 15 Rsense, DCR no 1 Constant Frequency Current Mode Buck, Buck, Boost 59.4 1.5 E,I,H,MP Buck Buck 15 0.8 59.4 Boost 1.2 60 LTspice Model DC1898A no no 2015-02-02 $4.95 (LTC3899EUHF) Extended Temperature (H & MP) Switching Regulators,External Power Switch Boost,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck,Multitopology DC/DC 35mm² (5x7 QFN-38),62.7mm² (TSSOP-38) 0.75mm (5x7 QFN-38),1.2mm (TSSOP-38) Matte Tin no yes
LT1776 1 7.4 40 60 0.56 yes no N-8,SO-8 60V Transient Protection 200 3.2 External Synchronization 1.24 250kHz - 400kHz no 30 0.7 no 1 Constant Frequency Current Mode Buck 34 2 C,I - - LTspice Model DC204A-B no no 1998-09-16 $2.50 (LT1776CN8) High Input Voltage Buck,Internal Power Switch Buck 31mm² (SO-8),65.7mm² (N-8) 1.75mm (SO-8),3.3mm (N-8) Lead,Matte Tin no no
LT3685 1 3.6 36 60 2 yes no 3x3 DFN-10,MS-10E 60V Transient Protection 2400 0.45 Resistor Set Frequency, External Synchronization, Power Good 0.79 200kHz - 2.4MHz 250kHz - 2MHz no 1.3 3.7 no 1 Constant Frequency Current Mode Buck 20 1.9 E,I - - LTspice File,LTpowerCAD Model DC1167A,DC1212A-B no no 2007-06-14 $3.05 (LT3685EDD) High Input Voltage Buck,Internal Power Switch Buck 9mm² (3x3 DFN-10),14.7mm² (MS-10E) 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3695 1 3.6 36 60 1 yes no MS-16E 60V Transient Protection 2200 0.075 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.8 250kHz - 2.2MHz 300kHz - 2.2MHz no 0.01 1.6 no 1 Constant Frequency Current Mode Buck 20 1.875 E,I,H - - LTspice File DC1519A,DC1578A-A,DC1578A-B no no 2009-07-30 $3.25 (LT3695EMSE-3.3) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LTC3631 1 4.5 45 60 0.1 yes yes 3x3 DFN-8,MS-8 60V Transient Protection, 100% Duty Cycle 0.012 Burst Mode, 100% Duty Cycle 0.8 no 3 0.225 no 1 Variable Frequency Current Mode Buck 45 1 E,I - - LTspice File DC1499A no no 2009-04-28 $2.95 (LTC3631EMS8E-5) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-8),14.7mm² (MS-8) 0.75mm (3x3 DFN-8),1.1mm (MS-8) Matte Tin no yes
LTC3632 1 4.5 50 60 0.02 yes yes 3x3 DFN-8,MS-8 60V Transient Protection, 100% Duty Cycle 0.012 Burst Mode, Overvoltage Protection, 100% Duty Cycle 0.8 no 3 0.05 no 1 Variable Frequency Current Mode Buck 50 1 E,I - - LTspice File DC1507A no no 2009-05-08 $2.45 (LTC3632EDD) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-8),14.7mm² (MS-8) 0.75mm (3x3 DFN-8),1.1mm (MS-8) Matte Tin no yes
LTC3642 1 4.5 45 60 0.05 yes yes 3x3 DFN-8,MS-8 60V Transient Protection, 3.3V, 5V or Adj VOUT 0.012 Burst Mode, 100% Duty Cycle 0.8 no 3 0.115 no 1 Variable Frequency Current Mode Buck 45 1 E,I - - LTspice File DC1429A no no 2008-11-03 $2.65 (LTC3642EMS8E-5) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-8),14.7mm² (MS-8) 0.75mm (3x3 DFN-8),1.1mm (MS-8) Matte Tin no yes
LT3667 3 4.3 40 60 0.4 yes no 3x5 QFN-24,MS-16E 60V Transient Protection, Dual LDO 2200 0.040 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 1.2 250kHz - 2.2MHz 300kHz - 2.2MHz no 0.01 0.75 no 1 Constant Frequency Current Mode Buck, LDO, LDO 38.6 E,I,H Buck LDO 0.2 0.8 38.6 LDO 0.2 0.8 38.6 LTspice File DC1869A yes no 2014-02-03 $2.55 (LT3667EMSE) Buck Regulator Plus LDO,Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Multitopology DC/DC 15mm² (3x5 QFN-24),19.8mm² (MS-16E) 0.75mm (3x5 QFN-24),1.1mm (MS-16E) Matte Tin no no
LT3437 1 3.3 60 80 0.4 yes no 3x3 DFN-10,TSSOP-16 60V VIN w/ 80V transients, Burst Mode 200 0.075 External Synchronization, Burst Mode 1.25 240kHz - 700kHz no 0.1 0.65 no 1 Constant Frequency Current Mode Buck 54 2 E,I,H - - LTspice File DC1232A no no 2005-07-29 $2.25 (LT3437EDD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),32.6mm² (TSSOP-16) 0.75mm (3x3 DFN-10),1.1mm (TSSOP-16) Lead,Matte Tin no yes
LTM8027 1 4.5 60 4 yes yes 15mm × 15mm × 4.32mm LGA,15mm x 15mm x 4.92mm BGA 60V, 4A DC/DC uModule Regulator 500 39 Resistor Set Frequency, External Synchronization 2.5 100kHz - 500kHz 100kHz - 500kHz yes 9 6 no 1 Constant Frequency Current Mode Buck 24 E,I,MP Buck - LTspice File,LTpowerCAD Model DC1307B,DC2125A yes no 2009-10-30 $16.50 (LTM8027EV) Extended Temperature (H & MP) uModule Regulators,High Input Voltage Buck,uModule Buck Regulators 225mm² (15mm x 15mm x 4.92mm BGA),225mm² (15mm × 15mm × 4.32mm LGA) 4.32mm (15mm × 15mm × 4.32mm LGA),4.92mm (15mm x 15mm x 4.92mm BGA) Gold,SAC305,Tin-Lead no no
LTC3649 1 3.1 60 4 yes yes 4x5 QFN-28,TSSOP-28 60V, 4A Synchronous Step-Down with Rail-to-Rail Programmable Output 3000 0.44 Burst Mode, Power Good, PolyPhase, Current Source Reference, Output Current Monitor, Resistor Set Frequency, External Synchronization 0 300kHz - 3MHz 300kHz - 3MHz no 18 6 yes Peak Current Mode Buck 59.5 0.8 E,I Buck LTspice File,LTpowerCAD File DC2113A no yes 2015-12-18 $5.65 (LTC3649EUFD) High Input Voltage Buck,Internal Power Switch Buck 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no no
LTC3630 1 4 65 0.5 yes yes 5x3 DFN-16,MS-16E 65V 500mA Step-Down Converter, Prog 1.8V/3.3V/5V/Adj VOUT 0.012 Burst Mode, 100% Duty Cycle 0.8 no 5 1.2 no 12 Hysteretic Mode Control Buck 65 1 E,I,H,MP - - LTspice File DC2105A-B no no 2012-05-09 $3.20 (LTC3630EDHC) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 15mm² (5x3 DFN-16),19.8mm² (MS-16E) 0.75mm (5x3 DFN-16),1.1mm (MS-16E) Matte Tin no yes
LT8641 1 3 65 3.5 yes yes 3x4 QFN-18 65V, 3.5A Synchronous Step-Down Silent Switcher with 2.5μA Iq 3000 0.0025 Silent Switcher Architecture, Spread Spectrum, Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.81 200kHz to 3MHz 200kHz to 3MHz no 0.75 5.8 no Constant Frequency Current Mode Buck 64 1.48 E,I Buck LTspice File,LTpowerCAD File DC2373A no yes 2016-02-10 $4.35 (LT8641EUDC) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Ultralow Noise Regulators 12mm² (3x4 QFN-18) 0.75mm (3x4 QFN-18) Matte Tin no no
LT3690 1 3.9 36 60 4 yes yes 4x6 QFN-26 70uA Quiescent Current, Low Ripple Burst Mode 1500 0.07 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.8 170kHz to 1.5MHz 170kHz to 1.5MHz no 0.1 6.6 no 1 Constant Frequency Current Mode Buck 20 E,I,H,MP - - LTspice File,LTpowerCAD Model DC1520A yes no 2011-02-03 $4.95 (LT3690EUFE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 24mm² (4x6 QFN-26) 0.75mm (4x6 QFN-26) Matte Tin no yes
LTC3630A 1 4 76 0.5 yes yes 5x3 DFN-16,MS-16E 76V 500mA Step-Down Converter, Prog 1.8V/3.3V/5V/Adj VOUT 0.012 100% Duty Cycle, Burst Mode, Fixed Output 0.8 no 5 1.2 no 1 Hysteretic Mode Control Buck 76 1 E,I,H,MP - - LTspice File DC2105A-A,DC1877A no no 2013-05-29 $3.30 (LTC3630AEDHC) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 15mm² (5x3 DFN-16),19.8mm² (MS-16E) 0.75mm (5x3 DFN-16),1.1mm (MS-16E) Matte Tin no yes
LT3980 1 3.6 58 80 2 yes no 4x3 DFN-14,MS-16E 80V Transient and Short-Circuit Protection, Low Ripple Burst Mode 2000 0.035 Burst Mode, External Synchronization, Power Good 0.79 250kHz - 2MHz no .01 4 no 1 Constant Frequency Current Mode Buck 57.42 E,I,H - - LTspice File,LTpowerCAD Model DC1476A no no 2009-09-16 $3.55 (LT3980EDE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 12mm² (4x3 DFN-14),19.8mm² (MS-16E) 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Matte Tin,Lead no yes
LT3433 1 4 60 0.4 yes no TSSOP-16 Buck-Boost Vin 4V-60V, Vout 3.3V-20V 200 0.1 Burst Mode, Output Disconnect 3.3 no 10 no 1 Constant Frequency Current Mode Buck-Boost 20 E,I - - LTspice File DC527A no no 2003-06-18 $3.25 (LT3433EFE) High Input Voltage Buck,Internal Power Switch Buck-Boost,Micropower Buck Regulators 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3988 2 4.1 60 80 1 yes no MS-16E Dual 1A Buck, 80V OVP, Integrated Boost Diodes 2500 1.6 Resistor Set Frequency, External Synchronization, Anti-Phase Switching, Tracking 0.75 250kHz - 2.5MHz 250kHz - 2.5MHz no 0.1 1.32 no 1 Constant Frequency Current Mode Buck 59.4 2 E,I,H Buck Buck 1 0.75 - LTspice File DC1677A no no 2012-04-02 $3.65 (LT3988EMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LT8616 2 3.4 42 2.5 yes yes 3x6 QFN-28,TSSOP-28 Dual 2.5A/1.5A 42V Synchronous Monolithic Step-Down with 6.5μA Iq 3000 0.003 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.79 200kHz - 3MHz 200kHz - 3MHz no 1.7 5.5 no Constant Frequency Current Mode Buck 41.8 1 E,I,H Buck Buck 1.5 0.79 41.8 LTspice File,LTpowerCAD File DC2169A yes yes 2015-04-13 $4.15 (LT8616EUDE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 18mm² (3x6 QFN-28),62.7mm² (TSSOP-28) 0.75mm (3x6 QFN-28),1.2mm (TSSOP-28) Matte Tin no yes
LT3509 2 3.6 36 60 0.7 yes no 4x3 DFN-14,MS-16E Dual 36V, 700mA Step-Down Regulator 2200 1.9 Overvoltage Protection, Resistor Set Frequency, External Synchronization 0.8 300kHz - 2.2MHz 300kHz - 2.2MHz no 9 1.4 no 1 Constant Frequency Current Mode Buck 35.28 2 E,I,H Buck Buck 0.7 0.8 - LTspice File,LTpowerCAD Model DC1248A no no 2009-01-08 $2.95 (LT3509EDE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 12mm² (4x3 DFN-14),19.8mm² (MS-16E) 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Matte Tin no yes
LTC3857 2 4 38 40 25 no yes 5x5 QFN-32 Dual 50μA IQ Buck Controller, LTC3857 CLKOUT, Two PGOOD, Foldback 850 0.05 Burst Mode, DCR Current Sense, Resistor Set Frequency, External Synchronization, Power Good 0.8 50kHz - 900kHz 75kHz - 850kHz no 0.01 25 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 24 1 E,I Buck Buck 25 .8 LTspice File,LTpowerCAD File DC1381A-A no no 2009-07-28 $4.00 (LTC3857EUH) External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 25mm² (5x5 QFN-32) 0.75mm (5x5 QFN-32) Matte Tin no yes
LTC3857-1 2 4 38 40 25 no yes SSOP-28 Dual 50μA IQ Buck Controller, LTC3857-1 One PGOOD, Foldback 850 0.05 Burst Mode, DCR Current Sense, Resistor Set Frequency, External Synchronization, Power Good 0.8 50kHz - 900kHz 75kHz - 850kHz no 0.01 25 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 24 1 E,I Buck Buck 25 .8 LTspice Model,LTpowerCAD File DC1352A-A no no 2009-07-28 $3.88 (LTC3857EGN-1) External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 61.9mm² (SSOP-28) 1.75mm (SSOP-28) Matte Tin no yes
LT3640 2 4 35 55 1.3 yes yes 4x5 QFN-28,TSSOP-28 Dual High (35V) and Low (5.5V) Vin Buck, POR & Watchdog 2500 0.275 Power On Reset, Burst Mode, Watchdog Timer, Resistor Set Frequency, External Synchronization, Power Good 1.265 350kHz - 2.5MHz 350kHz - 2.5MHz no 0.1 2.8 no 1 Constant Frequency Current Mode Buck 33.97 2 E,I Buck Buck 1 0.6 - LTspice File DC1359A no no 2010-01-19 $3.50 (LT3640EUFD) High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no yes
LT3641 2 4 42 55 1.3 yes yes 4x5 QFN-28,TSSOP-28 Dual High (42V) and Low (5.5V) Vin Buck, POR & Watchdog 2500 0.275 Resistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start 1.265 350kHz - 2.5MHz 350kHz - 2.5MHz no 0.1 2.8 no 1 Constant Frequency Current Mode Buck 40.97 2 E,I,H Buck Buck 1.1 0.6 - LTspice File DC1727A no no 2011-07-26 $3.65 (LT3641EUFD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 20mm² (4x5 QFN-28),62.7mm² (TSSOP-28) 0.75mm (4x5 QFN-28),1.2mm (TSSOP-28) Matte Tin no yes
LT3992 2 3 60 3 yes no 5x5 QFN-32,TSSOP-38 Dual Tracking 3A Buck, Antiphase Switching, Parallelable 2000 4.2 Power Good, Temperature Monitor, External Synchronization, Resistor Set Frequency, Anti-Phase Switching, Tracking 0.8 250kHz - 2MHz 250kHz - 2MHz no 6 4.6 yes Constant Frequency Current Mode Buck 58.8 2.23 E,I,H Buck Buck 3 0.8 - LTspice File,LTpowerCAD Model DC1537A no no 2012-03-19 $4.65 (LT3992EUH) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 25mm² (5x5 QFN-32),62.7mm² (TSSOP-38) 0.75mm (5x5 QFN-32),1.2mm (TSSOP-38) Matte Tin no yes
LT8471 2 2.6 50 1.6 yes no 4x5 QFN-28,TSSOP-20 Dual, Multitopology (Buck/Boost/SEPIC/Inverter/Flyback) 2000 2.4 External Synchronization, Resistor Set Frequency, Anti-Phase Switching, Power Good 0.789 100kHz - 2MHz 100kHz - 2MHz no 0.01 2.55 no 2 Constant Frequency Current Mode Buck, Boost, Sepic, Zeta, Flyback, Inverting 50 2 E,I,H 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) 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 20mm² (4x5 QFN-28),42.2mm² (TSSOP-20) 0.75mm (4x5 QFN-28),1.2mm (TSSOP-20) Matte Tin no no
LT1766 1 5.5 60 1.2 yes no SSOP-16,TSSOP-16 Fixed Output of 5V Available 200 2.5 Fixed Output, External Synchronization 1.2 228kHz - 700kHz no 25 2 no 1 Constant Frequency Current Mode Buck, Inverting 54 2 E,I,H - - LTspice File DC326B,DC326C no no 2001-05-02 $3.65 (LT1766EGN-5) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 30.9mm² (SSOP-16),32.6mm² (TSSOP-16) 1.1mm (TSSOP-16),1.75mm (SSOP-16) Lead,Matte Tin no yes
LT1956 1 5.5 60 1.2 yes no SSOP-16,TSSOP-16 Fixed Output of 5V Available 500 2.5 Fixed Output, External Synchronization 1.2 580kHz - 700kHz no 25 2 no 1 Constant Frequency Current Mode Buck, Inverting 45 2 E,I - - LTspice Model DC423B no no 2002-06-10 $3.65 (LT1956EGN-5) High Input Voltage Buck,Internal Power Switch Buck 30.9mm² (SSOP-16),32.6mm² (TSSOP-16) 1.1mm (TSSOP-16),1.75mm (SSOP-16) Lead,Matte Tin no yes
LTC7138 1 4 140 0.4 yes no MS-16E High Efficiency, 140V 400mA Step-Down Regulator 0.012 Burst Mode, Programmable Output Current Limit, 100% Duty Cycle, Fixed Output 0.8 no 1.4 0.610 no 1 Hysteretic Mode Control Buck 140 1 E,I,H,MP Buck LTspice File DC2172A yes no 2015-01-09 $3.80 (LTC7138EMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LTC3824 1 4 60 5 no no MS-10E High Voltage Step-Down With 40uA Quiescent Current 600 0.04 Burst Mode, Resistor Set Frequency, External Synchronization, 100% Duty Cycle 0.8 200kHz - 600kHz 200kHz - 600kHz no 25 5 Rsense no 1 Constant Frequency Current Mode Buck 60 1.5 E,I,H,MP - LTspice File DC960A no no 2006-05-26 $1.95 (LTC3824EMSE) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators 14.7mm² (MS-10E) 1.1mm (MS-10E) Lead,Matte Tin no yes
LT3800 1 4 60 15 no yes TSSOP-16 High-Voltage Synchronous Current Mode Step-Down 200 3 Burst Mode 1.231 no 20 20 Rsense no 1 Constant Frequency Current Mode Buck, Inverting 36 1 E,I - - LTspice File,LTpowerCAD Model DC720A no no 2005-05-10 $3.10 (LT3800EFE) External Power Switch Buck Controllers,High Input Voltage Buck 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3470 1 4 40 0.2 yes no 3x2 DFN-8,SOT-23 Integrated Boost & Catch Diodes, LT3470 5.5V Min Startup, 300mA Iswitch 0.025 Burst Mode, Integrated Boost Diode 1.25 Hysteretic no 0.1 0.325 no 1 Hysteretic Mode Control Buck 16 1.2 E,I,H - - LTspice File DC1037A,DC716B no no 2004-12-28 $2.36 (LT3470EDDB) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 6mm² (3x2 DFN-8),8.1mm² (SOT-23) 0.75mm (3x2 DFN-8),1mm (SOT-23) Lead,Matte Tin no yes
LT3470A 1 4 40 0.25 yes no 3x2 DFN-8 Integrated Boost & Catch Diodes, LT3470A 4V Min Startup, 400mA Iswitch 0.04 Burst Mode, Integrated Boost Diode 1.25 no 0.1 0.44 no 1 Hysteretic Mode Control Buck 16 1.2 E,I,H - - LTspice File DC1382A no no 2004-12-28 $2.46 (LT3470AEDDB) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 6mm² (3x2 DFN-8) 0.75mm (3x2 DFN-8) Matte Tin no yes
LT3840 1 2.5 60 20 no yes 4x6 QFN-38,TSSOP-28 Integrated Buck-Boost For Gate Drive 1000 0.02 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, Output Current Regulation, Output Current Monitor, Integrated Buck-Boost For Gate Drive 1.25 50kHz - 1MHz 50kHz - 1MHz no 0.1 20 Rsense no 1 Constant Frequency Current Mode Buck, Inverting 60 1 E,I,H,MP Buck, Inverting LTspice File DC1909A yes no 2014-02-10 $3.65 (LT3840EUFE) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators 24mm² (4x6 QFN-38),62.7mm² (TSSOP-28) 0.75mm (4x6 QFN-38),1.2mm (TSSOP-28) Matte Tin no yes
LT3973 1 4.2 42 0.75 yes no 3x3 DFN-10,MS-10E Integrated Catch & Boost Diodes 2200 0.0025 Burst Mode, Resistor Set Frequency, Power Good 1.21 200kHz to 2.2MHz no 12 1.65 no 1 Constant Frequency Current Mode Buck 24 2 E,I,H - - LTspice File,LTpowerCAD Model DC1730A no no 2011-10-12 $2.75 (LT3973EDD-3.3) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),14.7mm² (MS-10E) 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LTC7813 2 2.2 60 20 no yes 5x5 QFN-32 Low IQ, 60V Synchronous Boost+Buck Controller 850 0.034 Burst Mode, External Synchronization, Resistor Set Frequency, Tracking 0.8 115kHz - 835kHz 75kHz - 850kHz no 3.6 25 Rsense, DCR no 1 Constant Frequency Current Mode Boost, Buck 60 1.5 E,I,H,MP Boost Buck 20 LTspice Model,LTpowerCAD Model DC2435A-A,DC2435A-B,DC2435A-C no yes 2016-03-16 $4.82 (LTC7813EUH) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,External Power Switch Buck-Boost,High Input Voltage Buck,Micropower Buck Regulators,Multitopology DC/DC 25mm² (5x5 QFN-32) 0.75mm (5x5 QFN-32) Matte Tin no yes
LT3975 1 4 42 2.5 yes no MS-16E Low Ripple Burst Mode 2000 0.0016 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 1.197 200kHz - 2MHz 250kHz - 2MHz no 0.7 5.4 no 1 Constant Frequency Current Mode Buck 40.74 E,I,H - - LTspice File,LTpowerCAD Model DC1736A no no 2012-07-13 $3.10 (LT3975EMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LT3976 1 4.3 40 5 yes no 3x5 QFN-24,MS-16E Low Ripple Burst Mode 2000 0.0016 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 1.197 200kHz - 2MHz 250kHz - 2MHz no 0.7 10 no 1 Constant Frequency Current Mode Buck 38.8 E,I,H - - LTspice File,LTpowerCAD Model DC1848A no no 2012-07-13 $3.75 (LT3976EMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 15mm² (3x5 QFN-24),19.8mm² (MS-16E) 0.75mm (3x5 QFN-24),1.1mm (MS-16E) Lead,Matte Tin no yes
LT3502 1 3 40 0.5 yes no 2x2 DFN-8,MS-10 LT3502 1.1MHz, LT3502A 2.2MHz 2200 1.5 Integrated Boost Diode 0.8 no 0.5 0.9 no 1 Constant Frequency Current Mode Buck 36 2 E,I - - LTspice File,LTpowerCAD Model DC1221A,DC1089B,DC1221B no no 2007-04-30 $1.95 (LT3502EDC) High Input Voltage Buck,Internal Power Switch Buck 4mm² (2x2 DFN-8),14.7mm² (MS-10) 0.75mm (2x2 DFN-8),1.1mm (MS-10) Matte Tin,Lead no yes
LT3686A 1 3.6 37 60 1.2 yes no 3x3 DFN-10,MS-12E LT3686A Version Has 60V OVP and External Sync Option 2500 1.1 Resistor Set Frequency, External Synchronization, Tracking 0.8 300kHz - 2.5MHz 300kHz - 2.5MHz no 0.1 2.3 no 1 Constant Frequency Current Mode Buck 37 1.875 E,I,H - - LTspice File,LTpowerCAD Model DC1647A no no 2010-08-16 $2.50 (LT3686AEDD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 9mm² (3x3 DFN-10),19.8mm² (MS-12E) 0.75mm (3x3 DFN-10),1.1mm (MS-12E) Matte Tin no yes
LT3692A 2 3 36 60 3.5 yes no 5x5 QFN-32,TSSOP-38 LT3692A Offers Lower tON(MIN), Prog. UVLO, TSSOP-38E Package 2250 4 Resistor Set Frequency, External Synchronization, Anti-Phase Switching, Tracking, Power Good 0.8 250kHz - 2.25MHz 250kHz - 2.25MHz no 6 4.6 yes 2 Constant Frequency Current Mode Buck 34.2 E,I,H Buck Buck 3.5 0.8 - LTspice File,LTpowerCAD Model DC1403A no no 2011-07-15 $4.25 (LT3692AEUH) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Multiple Output Buck 25mm² (5x5 QFN-32),62.7mm² (TSSOP-38) 0.75mm (5x5 QFN-32),1.2mm (TSSOP-38) Matte Tin no yes
LT3971A 1 4.3 38 1.3 yes no MS-10E LT3791A Offers More Accurate Vref 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 1.19 200kHz - 2MHz 250kHz - 2MHz no 0.7 2.5 no 1 Constant Frequency Current Mode Buck 30 2.1 I - - LTspice File,LTpowerCAD Model - no no 2012-02-21 $3.35 (LT3971AIMSE) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 14.7mm² (MS-10E) 1.1mm (MS-10E) Matte Tin no yes
LT3971A-5 1 4.3 38 1.3 yes no MS-10E LT3791A-5 Offers More Accurate Vref, Fixed 5Vout 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 5 200kHz - 2MHz 250kHz - 2MHz no 0.7 2.5 no 1 Constant Frequency Current Mode Buck 5 2.1 I - - LTspice File,LTpowerCAD Model - no no 2012-02-21 $3.35 (LT3971AIMSE-5) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 14.7mm² (MS-10E) 1.1mm (MS-10E) Matte Tin no yes
LT3845A 1 4 60 15 no yes TSSOP-16 LT3845A Offers Improved Performance 500 0.12 Resistor Set Frequency, External Synchronization, Burst Mode 1.231 100kHz - 500kHz 100kHz - 500kHz no 20 15 Rsense yes 2 Constant Frequency Current Mode Buck 36 1.2 E,I,MP - - LTspice File,LTpowerCAD Model DC1619A no no 2006-12-22 $3.56 (LT3845AEFE) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Matte Tin no yes
LT8610A 1 3.4 42 3.5 yes yes MS-16E LT8610A Offers Improved 30ns Min On-Time and Iout, Fixed 3.3V & 5V Options 2200 0.0025 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.97 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 6.7 no 1 Constant Frequency Current Mode Buck 39.7 1.23 E,I,H - - LTspice File,LTpowerCAD File DC2012A,DC2139A no no 2013-12-03 $3.75 (LT8610AEMSE-3.3) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LT8610AB 1 3.4 42 3.5 yes yes MS-16E LT8610AB Improves Low Ripple Burst Mode Efficiency, Fixed 3.3V & 5V Options 2200 0.0025 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.97 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 6.7 no 1 Constant Frequency Current Mode Buck 39.7 1.23 E,I,H - - LTspice File,LTpowerCAD File DC2012A,DC2139A no no 2013-12-03 $3.75 (LT8610ABEMSE-3.3) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LT8610AC 1 3 42 3.5 yes yes MS-16E LT8610AC 0.8V Vref, 3V Min Vin, 30ns Min Ton; LT8610AC-1 Optimized For High Fsw 2200 0.017 Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.8 200kHz - 2.2MHz 200kHz - 2.2MHz no 1 6.7 no 1 Constant Frequency Current Mode Buck 41.8 1.5 C,E,I,H LTspice File,LTpowerCAD Model - no no 2014-10-16 $3.75 (LT8610ACEMSE-1) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LTC3646 1 4 40 1 yes yes 4x3 DFN-14,MS-16E LTC3646 Vout 2.0V to 30V 3000 0.140 Resistor Set Frequency, External Synchronization, Burst Mode, Power Good 2 200kHz - 3MHz 200kHz - 3MHz no 8 1.2 no 1 Constant Frequency Controlled On-Time Current Mode Buck 30 1.5 E,I,H - - LTspice File,LTpowerCAD File DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B yes no 2012-12-18 $2.85 (LTC3646EDE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 12mm² (4x3 DFN-14),19.8mm² (MS-16E) 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Lead,Matte Tin no yes
LTC3646-1 1 4 40 1 yes yes 4x3 DFN-14,MS-16E LTC3646-1 Vout 0.6V to 15V 3000 0.140 Resistor Set Frequency, External Synchronization, Burst Mode, Power Good 0.6 200kHz - 3MHz 200kHz - 3MHz no 8 1.2 no 1 Constant Frequency Controlled On-Time Current Mode Buck 15 1.5 E,I,H - - LTspice File,LTpowerCAD File DC1731A-A,DC1731A-B,DC1820A-A,DC1820A-B yes no 2012-12-18 $2.85 (LTC3646EDE-1) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 12mm² (4x3 DFN-14),19.8mm² (MS-16E) 0.75mm (4x3 DFN-14),1.1mm (MS-16E) Matte Tin no yes
LTC3703 1 9.3 100 20 no yes SSOP-16,SSOP-28 LTC3703 100Vin, 9.3V to 15V MOSFET Gate Drive, UV+ 8.7V, UV- 6.2V 600 1.7 No Rsense, Resistor Set Frequency, External Synchronization 0.8 100kHz to 600kHz Up to 600kHz no 25 20 None no 1 Constant Frequency Current Mode Buck, Boost 93 1 E,I,H - LTspice File DC501A no no 2003-12-24 $3.10 (LTC3703EGN) Extended Temperature (H & MP) Switching Regulators,External Power Switch Boost,External Power Switch Buck Controllers,High Input Voltage Buck 30.9mm² (SSOP-16),86.1mm² (SSOP-28) 1.75mm (SSOP-16),2mm (SSOP-28) Lead,Matte Tin no yes
LTC3703-5 1 9.3 60 20 no yes SSOP-16,SSOP-28 LTC3703 60Vin, 4.5V to 15V MOSFET Gate Drive, UV+ 3.7V, UV- 3.1V 600 1.7 No Rsense, Resistor Set Frequency, External Synchronization 0.8 100kHz to 600kHz Up to 600kHz no 25 20 None no 1 Constant Frequency Current Mode Buck, Boost 55.8 1 E,I - LTspice File - no no 2003-12-24 $3.10 (LTC3703EGN-5) External Power Switch Boost,External Power Switch Buck Controllers,High Input Voltage Buck 30.9mm² (SSOP-16),86.1mm² (SSOP-28) 1.75mm (SSOP-16),2mm (SSOP-28) Lead,Matte Tin no yes
LTC3810 1 6.2 100 10 no yes SSOP-28 LTC3810 Vin 6.2V to 100V, 10V Driver Voltage, Tracking, External Synchronization 250 3 No Rsense, Power Good, Tracking, External Synchronization, Resistor Set Frequency 0.8 100kHz to 1MHz 100kHz to 1MHz no 240 20 Rsense, None no 1 Constant On-Time Valley Current Mode Buck 55.8 0.5 E,I - LTspice File,LTpowerCAD Model DC952A no no 2007-04-19 $3.50 (LTC3810EG) External Power Switch Buck Controllers,High Input Voltage Buck 86.1mm² (SSOP-28) 2mm (SSOP-28) Matte Tin,Lead no no
LTC3810-5 1 4.35 60 10 no yes 5x5 QFN-32 LTC3810-5 Vin 4.35V to 60V, 5.5V Driver Voltage, Tracking, External Synchronization 250 3 Tracking, No Rsense, External Synchronization, Power Good, Resistor Set Frequency 0.8 100kHz - 1MHz 100kHz - 1MHz no 240 10 Rsense, None no 1 Constant On-Time Valley Current Mode Buck 60 0.5 E,I,H - LTspice File,LTpowerCAD Model DC1168A no no 2007-05-26 $3.38 (LTC3810EUH-5) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck 25mm² (5x5 QFN-32) 0.75mm (5x5 QFN-32) Matte Tin no no
LTC3890 2 4 60 15 no yes 5x5 QFN-32 LTC3890 Adj. Current Limit, Multi-Phase, Current Limit Foldback 900 0.06 Burst Mode, DCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Power Good, PolyPhase 0.8 50kHz - 900kHz 75kHz - 850kHz no 14 15 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 24 1 E,I,H,MP Buck Buck 15 0.8 LTspice File,LTpowerCAD File DC2236A-B yes no 2010-02-25 $4.59 (LTC3890EUH) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 25mm² (5x5 QFN-32) 0.75mm (5x5 QFN-32) Matte Tin no yes
LTC3890-1 2 4 60 15 no yes SSOP-28 LTC3890-1 No Multi-Phase, Current Limit Foldback, Forced Continuous 900 0.06 Burst Mode, DCR Current Sense, Resistor Set Frequency, External Synchronization, Power Good, Tracking, PolyPhase 0.8 50kHz - 900kHz 75kHz - 850kHz no 14 15 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 24 1 E,I,H,MP Buck Buck 15 0.8 LTspice File,LTpowerCAD File DC1244A,DC2299A-B no no 2010-02-25 $4.47 (LTC3890EGN-1) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 61.9mm² (SSOP-28) 1.75mm (SSOP-28) Matte Tin no yes
LTC3890-2 2 4 60 15 no yes 5x5 QFN-32 LTC3890-2 Adj. Current Limit, Multi-Phase, Pulse Skip, Can Make Boost/SEPIC 900 0.050 DCR Current Sense, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.8 50kHz - 900kHz 75kHz - 850kHz no 14 15 Rsense, DCR no 2 Constant Frequency Current Mode Buck 24 1.5 E,I,H,MP Buck Buck 15 0.8 LTspice File,LTpowerCAD File DC2236A-A no no 2012-11-13 $4.59 (LTC3890EUH-2) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 25mm² (5x5 QFN-32) 0.75mm (5x5 QFN-32) Matte Tin no yes
LTC3890-3 2 4 60 15 no yes SSOP-28 LTC3890-3 Pulse Skipping, Can Make Boost/SEPIC 900 0.050 DCR Current Sense, Burst Mode, Resistor Set Frequency, External Synchronization, Tracking, Power Good 0.8 50kHz - 900kHz 75kHz - 850kHz no 14 15 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 24 1.5 E,I,H,MP Buck Buck 15 0.8 LTspice File,LTpowerCAD Model DC2299A-A no no 2013-01-23 $4.47 (LTC3890EGN-3) Extended Temperature (H & MP) Switching Regulators,External Power Switch Buck Controllers,High Input Voltage Buck,Micropower Buck Regulators,Multiple Output Buck 61.9mm² (SSOP-28) 1.75mm (SSOP-28) Matte Tin no yes
LTC3870-1 2 4.5 60 20 no yes 4x4 QFN-24 PolyPhase Step-Down Slave Controller for Digital Power System Management 1000 1.1 PolyPhase, External Synchronization, Resistor Set Frequency 0.5 100kHz - 1MHz 100kHz - 1MHz no 20 Rsense, DCR 2 Constant Frequency Current Mode Buck 14 0.5 E,I Buck Buck 20 0.5 14 LTspice Model DC2454A no yes 2015-11-10 $2.35 (LTC3870EUF-1) Digital Power System Management,External Power Switch Buck Controllers,High Input Voltage Buck,Multiple Output Buck 16mm² (4x4 QFN-24) 0.75mm (4x4 QFN-24) Matte Tin no no
LT3689 1 3.4 38 60 0.7 yes no 3x3 QFN-16,MS-16E POR and Watchdog Timer 2200 0.05 Burst Mode, Resistor Set Frequency, External Synchronization, Watchdog Timer 0.8 350kHz - 2.2MHz 350kHz - 2.2MHz no 0.01 1.55 no 1 Constant Frequency Current Mode Buck 34.2 1.5 E,I,H - - LTspice File DC1312A no no 2009-07-28 $3.20 (LT3689EUD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 QFN-16),19.8mm² (MS-16E) 0.75mm (3x3 QFN-16),1.1mm (MS-16E) Matte Tin no yes
LT3689-5 1 3.4 38 60 0.7 yes no 3x3 QFN-16,MS-16E POR and Watchdog Timer, 5V Fixed Output 2200 0.05 Burst Mode, Resistor Set Frequency, External Synchronization, Watchdog Timer 5 350kHz - 2.2MHz 350kHz - 2.2MHz no 0.01 1.55 no 1 Constant Frequency Current Mode Buck 5 2 E,I,H - - LTspice File DC1312A no no 2009-07-28 $3.20 (LT3689EUD-5) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 QFN-16),19.8mm² (MS-16E) 0.75mm (3x3 QFN-16),1.1mm (MS-16E) Matte Tin no yes
LT1076 1 7.3 45 1.6 yes no DDPAK-5,DDPAK-7,TO-220 Programmable Current Limit 100 8.5 - 2.21 no 140 2.6 no 1 Constant Frequency Current Mode Buck, Inverting 35 C,I - - LTspice File - no no 1992-11-19 $3.40 (LT1076CT) High Input Voltage Buck,Internal Power Switch Buck,Inverting Regulators 99.1mm² (DDPAK-7),99.1mm² (DDPAK-5),165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) 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
LT1074 1 7.3 45 4.4 yes no TO-220 Programmable Current Limit 100 8.5 - 2.21 no 140 6.5 no 1 Constant Frequency Current Mode Buck, Inverting 35 C,I - - LTspice File - no no 1992-11-19 $5.05 (LT1074CT) High Input Voltage Buck,Internal Power Switch Buck,Inverting Regulators 165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) 4.57mm (TO-220),4.57mm (TO-220),4.57mm (TO-220) Lead,Matte Tin no no
LT1076HV 1 7.3 60 1.6 yes no DDPAK-7,TO-220 Programmable Current Limit, HV Vin Up To 60V 100 8.5 - 2.21 no 140 2.6 no 1 Constant Frequency Current Mode Buck, Inverting 35 C,I - - LTspice File - no no 1992-11-19 $6.00 (LT1076HVCT) High Input Voltage Buck,Internal Power Switch Buck,Inverting Regulators 99.1mm² (DDPAK-7),165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) 4.57mm (TO-220),4.57mm (TO-220),4.57mm (TO-220),4.57mm (DDPAK-7) Matte Tin,Lead no no
LT1076-5 1 7.3 45 1.6 yes no DDPAK-5,DDPAK-7,TO-220 Programmable Current Limit, -5 Fixed 5Vout 100 8.5 Fixed Output 5 no 1 2.6 no 1 Constant Frequency Current Mode Buck 5 C,I - - LTspice Model - no no 1992-11-19 $3.40 (LT1076CT-5) High Input Voltage Buck,Internal Power Switch Buck 99.1mm² (DDPAK-7),99.1mm² (DDPAK-5),165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) 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
LT1074HV 1 7.3 64 4.4 yes no TO-220 Programmable Current Limit, HV Vin Up To 60V 100 8.5 - 2.21 no 140 6.5 no 1 Constant Frequency Current Mode Buck, Inverting 35 C,I - - LTspice File - no no 1992-11-19 $7.60 (LT1074HVCT) High Input Voltage Buck,Internal Power Switch Buck,Inverting Regulators 165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220),165.9mm² (TO-220) 4.57mm (TO-220),4.57mm (TO-220),4.57mm (TO-220),4.57mm (TO-220) Lead,Matte Tin no no
LT1777 1 7 48 0.44 yes no SO-16 Programmable di/dt Limit for Low Noise Applications 100 0.62 Low EMI, Adjustable Slew Rate, External Synchronization 1.24 130kHz - 250kHz no 12 0.7 no 1 Constant Frequency Current Mode Buck 30 1.2 C,I - - LTspice Model DC242A no no 1999-02-25 $2.65 (LT1777CS) High Input Voltage Buck,Internal Power Switch Buck,Ultralow Noise Regulators 62mm² (SO-16) 1.75mm (SO-16) Lead,Matte Tin no no
LT8602 4 3 42 2.5 yes yes 6x6 QFN-40 Quad Monolithic Step-Down (2 HV Buck 2.5A/1.5A, 2 LV Buck 1.8A/1.8A) 2200 0.03 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good, PolyPhase 1 250kHz - 2.2MHz 250kHz - 2.2MHz no 0.1 4 yes 2 Constant Frequency Current Mode Buck 42 1.2 E,I Buck Buck 1.8 1 42 Buck 1.8 0.8 5.5 1.5 LTspice File,LTpowerCAD File DC1949A yes yes 2015-07-13 $5.35 (LT8602EUJ) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 36mm² (6x6 QFN-40) 0.75mm (6x6 QFN-40) Matte Tin no yes
LT8614 1 3.4 42 4 yes yes 3x4 QFN-18 Silent Switcher Architecture Minimizes EMI, 2.5µA Low Ripple Burst Mode 3000 0.0017 Silent Switcher Architecture, Low EMI, Burst Mode, Tracking, Power Good 0.97 200kHz - 3MHz 200kHz - 3MHz no 1 6 no 1 Constant Frequency Current Mode Buck 41.8 1.2 E,I,H Buck - - LTspice File,LTpowerCAD File DC2019B yes no 2013-07-02 $4.25 (LT8614EUDC) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Ultralow Noise Regulators 12mm² (3x4 QFN-18) 0.75mm (3x4 QFN-18) Matte Tin,Lead no yes
LTC3870 2 4.5 60 20 no yes 4x5 QFN-28 Slave Controller for LTC3880/LTC3883 with PSM 1000 1.1 PolyPhase, External Synchronization, Resistor Set Frequency 0.5 100kHz - 1MHz 100kHz - 1MHz no 1100 20 Rsense, DCR yes 2 Constant Frequency Current Mode Buck 14 E,I Buck Buck 20 0.5 14 LTspice Model,LTpowerCAD File DC2089A-A,DC2089A-B,DC2155A-B yes no 2014-03-03 $2.35 (LTC3870EUFD) Digital Power System Management,External Power Switch Buck Controllers,High Input Voltage Buck,Multiple Output Buck 20mm² (4x5 QFN-28) 0.75mm (4x5 QFN-28) Matte Tin no no
LT8640 1 3.4 42 5 yes yes 3x4 QFN-18 Step-Down Silent Switcher, LT8640 Pulse Skipping, /-1 Forced Continuous 3000 0.0017 Silent Switcher Architecture, Low EMI, Burst Mode, Tracking, Power Good 0.97 200kHz - 3MHz 200kHz - 3MHz no 0.75 10 no 1 Constant Frequency Current Mode Buck 41.9 1.23 E,I,H LTspice File,LTpowerCAD File DC2202A yes no 2014-12-09 $4.35 (LT8640EUDC-1) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Ultralow Noise Regulators 12mm² (3x4 QFN-18) 0.75mm (3x4 QFN-18) Matte Tin no yes
LT3480 1 3.6 36 60 2 yes no 3x3 DFN-10,MS-10E Transient Protection to 60V, Low Ripple Burst Mode 2400 0.07 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.79 200kHz - 2.4MHz 250kHz - 2MHz no 1 3.5 no 1 Constant Frequency Current Mode Buck 20 E,I,H,MP - - LTspice File,LTpowerCAD Model DC1091A,DC1212A-A,DC1394A no no 2007-03-06 $3.45 (LT3480EDD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),14.7mm² (MS-10E) 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin,Lead no yes
LT3972 1 3.6 33 62 3.5 yes no 3x3 DFN-10,MS-10E Transient Protection to 62V, Low Ripple Burst Mode Operation 2400 0.03 Burst Mode, Resistor Set Frequency, External Synchronization, Power Good 0.79 250kHz - 2.4MHz 250kHz - 2MHz no 1 5.4 no 1 Constant Frequency Current Mode Buck 30 E,I,H - - LTspice File,LTpowerCAD Model DC1458A no no 2008-09-18 $4.25 (LT3972EDD) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),14.7mm² (MS-10E) 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT8601 3 3 42 2.5 yes yes 6x6 QFN-40 Triple 42V, 2.5A, 1.8A, 1.5A Monolithic Synchronous Step-Down 2200 0.03 Burst Mode, Resistor Set Frequency, External Synchronization, Power On Reset, Power Good 1 250kHz - 2.2MHz 250kHz - 2.2MHz no 0.1 4 no 1 Constant Frequency Current Mode Buck 41.4 1.5 E,I 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) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators,Multiple Output Buck 36mm² (6x6 QFN-40) 0.75mm (6x6 QFN-40) Matte Tin no no
LT3991 1 4.3 55 1.2 yes no 3x3 DFN-10,MS-10E Ultralow 2.8μA IQ, Low Ripple Burst Mode 2000 0.0017 Burst Mode, Resistor Set Frequency, External Synchronization 1.19 200kHz - 2MHz 250kHz - 2MHz no 0.7 2.3 no 1 Constant Frequency Current Mode Buck 30 2.1 E,I - - LTspice File,LTpowerCAD Model DC1526A no no 2009-11-04 $2.95 (LT3991EDD) High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 9mm² (3x3 DFN-10),14.7mm² (MS-10E) 0.75mm (3x3 DFN-10),1.1mm (MS-10E) Matte Tin no yes
LT3995 1 4.3 60 3 yes no MS-16E Ultralow 3.4μA IQ, Low Ripple Burst Mode 2000 0.0016 Burst Mode, External Synchronization, Resistor Set Frequency, Power Good 1.197 200kHz - 2MHz 250kHz - 2MHz no 0.7 6.3 no 1 Constant Frequency Current Mode Buck 55.8 2 E,I,H - - LTspice File,LTpowerCAD Model DC1832A no no 2013-05-06 $3.55 (LT3995EMSE) Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck,Micropower Buck Regulators 19.8mm² (MS-16E) 1.1mm (MS-16E) Matte Tin no yes
LT8697 1 5 42 2.5 yes yes 3x5 QFN-24 USB 5V 2.5A Output, Cable Drop Compensation 2200 9 Cable Drop Compensation, Programmable Output Current Limit, Output Current Monitor, Tracking, Resistor Set Frequency, External Synchronization 5 300kHz - 2.2MHz 300kHz - 2.2MHz no 1 4.5 no 1 Constant Frequency Current Mode Buck 5.25 1.3 E,I,H - - LTspice File DC1973A yes no 2013-07-09 $3.55 (LT8697EUDD) Cable Drop Compensation,Extended Temperature (H & MP) Switching Regulators,High Input Voltage Buck,Internal Power Switch Buck 15mm² (3x5 QFN-24) 0.75mm (3x5 QFN-24) Matte Tin no no
LTC3812-5 1 6.2 60 10 no yes TSSOP-16 Vin 4.35V to 60V, 5.5V Driver Voltage 250 3 No Rsense, Power Good, Resistor Set Frequency 0.8 100kHz to 1MHz 100kHz to 1MHz no 224 20 Rsense, None no 1 Constant On-Time Valley Current Mode Buck 55.8 0.875 E,I - LTspice Model,LTpowerCAD Model DC1035A no no 2007-04-17 $3.25 (LTC3812EFE-5) External Power Switch Buck Controllers,High Input Voltage Buck 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Matte Tin no no
LT3844 1 4 60 5 no no TSSOP-16 Wide Input Voltage Range, Burst Mode 600 0.12 Burst Mode, Resistor Set Frequency, External Synchronization 1.231 100kHz - 500kHz 100kHz - 600kHz no 10 5 Rsense no 1 Constant Frequency Current Mode Buck, Boost, Inverting, Sepic 36 1.3 E,I - - LTspice File,LTpowerCAD Model DC974A no no 2006-04-12 $3.10 (LT3844EFE) External Power Switch Boost,External Power Switch Buck Controllers,High Input Voltage Buck,Inverting Regulators,SEPIC Regulators 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes
LT3724 1 4 60 5 no no TSSOP-16 Wide Vin, Burst Mode 200 1.7 Burst Mode 1.23 no 9 5 Rsense no 1 Constant Frequency Current Mode Buck, Boost, Sepic, Inverting 36 1.3 E,I,MP - - LTspice File,LTpowerCAD Model DC736A no no 2005-04-12 $3.10 (LT3724EFE) Extended Temperature (H & MP) Switching Regulators,External Power Switch Boost,External Power Switch Buck Controllers,High Input Voltage Buck,SEPIC Regulators 32.6mm² (TSSOP-16) 1.1mm (TSSOP-16) Lead,Matte Tin no yes