Monitor, Control and Protection Power-over-Ethernet (PoE) Interface Controllers

Power-over-Ethernet (PoE) Interface Controllers Try our new parametric tables

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Channels PSE/PD PoE Type Max Power IEEE-Compliant Detection IEEE-Compliant Classification IEEE-Compliant Disconnection Packages I2C Interface Temp Range Description Design Tools Demo Boards Featured New Date Added Price 1k* Product Category Package Area Package Height Export Control Auto & Transport Terminal Finish
Units # W yes/no mm² mm yes/no
Selection
(hold Ctrl key to select multiple,
hold Shift key to select range)
LT4275 1 PD 1, 2, LTPoE++ 90 Yes (Internal 25k resistor) One Event, Two Event N/A 3x3 DFN-10,MS-10 I,H LTPoE++/PoE+/PoE PD Controller LTspice Model DC2093A-A,DC2093A-B,DC2093A-C,DC2125A no no 2012-07-31 $1.45 (LT4275CIDD) Extended Temperature (H & MP) Power Management,PoE Powered Device (PD) 9mm² (3x3 DFN-10),14.7mm² (MS-10) 0.75mm (3x3 DFN-10),1.1mm (MS-10) no yes Matte Tin
LTC4257 1 PD 1 13 Yes (Internal 25k resistor) One Event N/A 3x3 DFN-8,SO-8 no C,I IEEE 802.3af PD LTspice Model DC959A no no 2003-05-15 $1.65 (LTC4257CS8) PoE Powered Device (PD) 9mm² (3x3 DFN-8),31mm² (SO-8) 0.75mm (3x3 DFN-8),1.75mm (SO-8) no yes Lead,Matte Tin
LTC4257-1 1 PD 1 13 Yes (Internal 25k resistor) One Event N/A 3x3 DFN-8,SO-8 no C,I IEEE 802.3af PD with Dual Current Limit LTspice Model DC671A no no 2003-05-15 $1.75 (LTC4257CS8-1) PoE Powered Device (PD) 9mm² (3x3 DFN-8),31mm² (SO-8) 0.75mm (3x3 DFN-8),1.75mm (SO-8) no yes Lead,Matte Tin
LTC4265 1 PD 2 25.5 Yes (Internal 25k resistor) One Event, Two Event N/A 4x3 DFN-12 no C,I IEEE 802.3at PD with 2-Event Classification Recognition LTspice Model DC1415A no no 2008-12-02 $1.80 (LTC4265CDE) PoE Powered Device (PD) 12mm² (4x3 DFN-12) 0.75mm (4x3 DFN-12) no no Matte Tin
LTC4263-1 1 PSE - 30 2-Point One Event DC or AC 4x3 DFN-14 no C,I High Power Single PSE Controller with Internal Switch - - no no 2006-04-07 $2.95 (LTC4263CDE-1) PoE Power Sourcing Equipment (PSE) 12mm² (4x3 DFN-14) 0.75mm (4x3 DFN-14) no no Matte Tin
LTC4263 1 PSE 1 12.95 2-Point One Event DC or AC 4x3 DFN-14,SO-14 no C,I Single IEEE 803.2af Compliant PSE Controller with Internal Switch - DC981A/B no no 2006-04-07 $2.95 (LTC4263CDE) PoE Power Sourcing Equipment (PSE) 12mm² (4x3 DFN-14),54.1mm² (SO-14) 0.75mm (4x3 DFN-14),1.75mm (SO-14) no no Lead,Matte Tin
LTC4279 1 PSE 1, 2, LTPoE++ 123 4-Point One Event, Two Event, LTPoE++ DC 4x5 QFN-20,SO-16 no I Single Port PoE/PoE+/ LTPoE++ PSE Controller - DC2541A yes yes 2017-01-10 $3.45 (LTC4279IS) PoE Power Sourcing Equipment (PSE) 20mm² (4x5 QFN-20),62mm² (SO-16) 0.75mm (4x5 QFN-20),1.75mm (SO-16) no no Matte Tin
LT4276 1 PD 1, 2, LTPoE++ 90 Yes (Internal 25k resistor) One Event, Two Event N/A 4x5 QFN-28 no I,H LTPoE++/PoE+/PoE PD Forward/Flyback Controller LTspice Model DC2047A-A,DC2046A-A,DC2046A-B,DC2046A-C,DC2046A-D,DC2046A-E,DC2046A-F,DC2262A-A,DC2262A-B yes yes 2015-06-22 $2.25 (LT4276CIUFD) PoE Powered Device (PD) 20mm² (4x5 QFN-28) 0.75mm (4x5 QFN-28) no no Matte Tin
LT4295 1 PD 1, 2, 3, 4 71 Yes (Internal 25k resistor) One Event, Two Event, Three Event, Four Event, Five Event - 4x5 QFN-28 no I,H IEEE 802.3bt PD Interface with Forward/Flyback Controller - DC2475A-A,DC2476A-A,DC2539A-A yes yes 2016-08-04 $3.10 (LT4295IUFD) PoE Powered Device (PD) 20mm² (4x5 QFN-28) 0.75mm (4x5 QFN-28) no no Matte Tin
LTC4267-3 1 PD 1 13 Yes (Internal 25k resistor) One Event N/A 5x3 DFN-16,SSOP-16 yes C,I IEEE 802.3af PD with Integrated 300kHz Switching Regulator and Increased Current Limit LTspice Model DC1249A no no 2005-05-24 $2.10 (LTC4267CGN-3) PoE Powered Device (PD) 15mm² (5x3 DFN-16),30.9mm² (SSOP-16) 0.75mm (5x3 DFN-16),1.75mm (SSOP-16) no no Lead,Matte Tin
LTC4267 1 PD 1 13 Yes (Internal 25k resistor) One Event N/A 5x3 DFN-16,SSOP-16 yes C,I IEEE 802.3af PD with Integrated 200kHz Switching Regulator LTspice Model DC859A,DC917A,DC1145B,DC804B-A no no 2005-05-24 $2.10 (LTC4267CGN) PoE Powered Device (PD) 15mm² (5x3 DFN-16),30.9mm² (SSOP-16) 0.75mm (5x3 DFN-16),1.75mm (SSOP-16) no no Lead,Matte Tin
LTC4266C 4 PSE 1 13 4-Point One Event DC 5x7 QFN-38 yes I Quad PoE PSE Controller - DC1815A-A,DC1815A-C,DC1815A-D,DC1815A-B yes no 2011-06-14 $5.00 (LTC4266CIUHF) PoE Power Sourcing Equipment (PSE) 35mm² (5x7 QFN-38) 0.75mm (5x7 QFN-38) no yes Matte Tin
LTC4274 1 PSE 2 25.5 4-Point One Event, Two Event DC 5x7 QFN-38 yes C,I Single IEEE 802.3at Power Over Ethernet Controller LTspice Model DC1567B no no 2009-11-02 $4.50 (LTC4274CUHF) PoE Power Sourcing Equipment (PSE) 35mm² (5x7 QFN-38) 0.75mm (5x7 QFN-38) no no Matte Tin
LTC4274A 1 PSE 1, 2, LTPoE++ 90 4-Point One Event, Two Event, LTPoE++ DC 5x7 QFN-38 yes I Single PoE/PoE+/LTPoE++ PSE Controller LTspice Model DC1814A-D,DC1814A-A,DC1814A-B,DC1814A-C no no 2011-06-14 $5.40 (LTC4274AIUHF-1) PoE Power Sourcing Equipment (PSE) 35mm² (5x7 QFN-38) 0.75mm (5x7 QFN-38) no no Matte Tin
LTC4274C 1 PSE 1 13 4-Point One Event DC 5x7 QFN-38 yes I Single PoE PSE Controller LTspice Model DC1814A-D,DC1814A-A,DC1814A-B,DC1814A-C no no 2011-06-14 $4.50 (LTC4274CIUHF) PoE Power Sourcing Equipment (PSE) 35mm² (5x7 QFN-38) 0.75mm (5x7 QFN-38) no no Matte Tin
LTC4266A 4 PSE LTPoE++ 90 4-Point One Event, Two Event, LTPoE++ DC 5x7 QFN-38 yes I Quad PoE/PoE+/LTPoE++ PSE Controller - DC1815A-A,DC1815A-C,DC1815A-D,DC1815A-B yes no 2011-06-14 $6.00 (LTC4266AIUHF-1) PoE Power Sourcing Equipment (PSE) 35mm² (5x7 QFN-38) 0.75mm (5x7 QFN-38) no yes Matte Tin
LTC4266 4 PSE 2 25.5 4-Point One Event, Two Event DC 5x7 QFN-38,SSOP-36 yes C,I Quad IEEE 802.3at Power over Ethernet Controller - DC1366B no no 2009-05-27 $5.00 (LTC4266CGW) PoE Power Sourcing Equipment (PSE) 35mm² (5x7 QFN-38),163.9mm² (SSOP-36) 0.75mm (5x7 QFN-38),2.64mm (SSOP-36) no yes Matte Tin
LTC4290 & LTC4271 8 PSE 1, 2, LTPoE++ 90 4-Point One Event, Two Event, LTPoE++ DC 6x6 QFN-40 yes I 8 Independent PSE Channels, Compliant with IEEE 802.3at Type 1 (13W) and Type 2 (25.5W) and LTPoE++ (35W to 90W) - DC1843B no no 2012-08-20 $7.00 (LTC4290BIUJ) PoE Power Sourcing Equipment (PSE) 36mm² (6x6 QFN-40) 0.75mm (6x6 QFN-40) no no Matte Tin
LTC4278 1 PD 2 25.5 Yes (Internal 25k resistor) One Event, Two Event N/A 7x4 DFN-32 yes C,I IEEE 802.3at PD with Synchronous No-Opto Flyback Controller and 12V Aux Support LTspice Model DC1561B no no 2009-06-25 $2.60 (LTC4278CDKD) PoE Powered Device (PD) 28mm² (7x4 DFN-32) 0.75mm (7x4 DFN-32) no no Matte Tin
LTC4269-2 1 PD 2 25.5 Yes (Internal 25k resistor) One Event, Two Event N/A 7x4 DFN-32 yes C,I IEEE 802.3at High Power PD and Sychronous Forward Controller with AUX Support LTspice Model DC1351B no no 2009-06-08 $2.60 (LTC4269CDKD-2) PoE Powered Device (PD) 28mm² (7x4 DFN-32) 0.75mm (7x4 DFN-32) no no Matte Tin
LTC4269-1 1 PD 2 25.5 Yes (Internal 25k resistor) One Event, Two Event N/A 7x4 DFN-32 yes C,I IEEE 802.3at PD with Synchronous No-Opto Flyback Controller LTspice Model DC1335B-C,DC1335B-B no no 2009-06-08 $2.40 (LTC4269CDKD-1) PoE Powered Device (PD) 28mm² (7x4 DFN-32) 0.75mm (7x4 DFN-32) no no Matte Tin
LTC4270 & LTC4271 12 PSE 1, 2, LTPoE++ 90 4-Point One Event, Two Event, LTPoE++ DC 7x8 QFN-52 yes I 12 Independent PSE Channels, Compliant with IEEE 802.3at Type 1 (13W) and Type 2 (25.5W) and LTPoE++ (35W to 90W) - DC1840C yes no 2011-04-14 $9.00 (LTC4270BIUKG) PoE Power Sourcing Equipment (PSE) 56mm² (7x8 QFN-52) 0.75mm (7x8 QFN-52) no yes Matte Tin
LTC4267-1 1 PD 1 13 Yes (Internal 25k resistor) One Event N/A SSOP-16 yes C,I IEEE 802.3af PD with Integrated 200kHz Switching Regulator and Increased Current Limit LTspice Model - no no 2005-05-24 $2.10 (LTC4267CGN-1) PoE Powered Device (PD) 30.9mm² (SSOP-16) 1.75mm (SSOP-16) no no Matte Tin