Page 2 - Linear Technology Products - PMIC - Power Over Ethernet (PoE) Controllers

LTC4274AIUHF-4#PBF
Linear Technology

IC CONTROLLER POE 38-QFN

Package: 38-WFQFN Exposed Pad

Stock8,232
LTC4274AIUHF-1#PBF
Linear Technology

IC CONTROLLER POE 38-QFN

Package: 38-WFQFN Exposed Pad

Stock10,260
LTC4263IDE#PBF
Linear Technology

IC POE 803.2AF SINGLE PSE 14-DFN

Package: 14-WFDFN Exposed Pad

Stock60,288
LTC4263IS#PBF
Linear Technology

IC POE 803.2AF SINGL PSE 14-SOIC

Package: 14-SOIC (0.154", 3.90mm Width)

Stock14,220
LTC4278IDKD#PBF
Linear Technology

IC POE 802.3AT PD W/REG 32-DFN

Package: 32-WFDFN Exposed Pad

Stock39,960
LTC4271IUF#PBF
Linear Technology

IC POE 12-/8-PORT PSE 24-QFN

Package: 24-WFQFN Exposed Pad

Stock52,608
LTC4269IDKD-1#PBF
Linear Technology

IC POE 802.3AT PD W/REG 32-DFN

Package: 32-WFDFN Exposed Pad

Stock9,564
LTC4263CS#PBF
Linear Technology

IC POE 803.2AF SINGL PSE 14-SOIC

Package: 14-SOIC (0.154", 3.90mm Width)

Stock5,808
LTC4263CDE#PBF
Linear Technology

IC POE 803.2AF SINGLE PSE 14-DFN

Package: 14-WFDFN Exposed Pad

Stock64,176
LT4276BIUFD#PBF
Linear Technology

IC POE LTPOE INTERFACE 28QFN

Package: 28-WFQFN Exposed Pad

Stock15,222
LTC4278CDKD#PBF
Linear Technology

IC POE 802.3AT PD W/REG 32-DFN

Package: 32-WFDFN Exposed Pad

Stock88,668
LTC4269CDKD-1#PBF
Linear Technology

IC POE 802.3AT PD W/REG 32-DFN

Package: 32-WFDFN Exposed Pad

Stock19,488
LTC4267IGN-3#PBF
Linear Technology

IC POE 802.3AF PD W/REG 16-SSOP

Package: 16-SSOP (0.154", 3.90mm Width)

Stock7,428
LT4275AIDD#PBF
Linear Technology

IC POE LTPOE INTERFACE 10-DFN

Package: 10-WFDFN Exposed Pad

Stock20,184
LTC4265IDE#PBF
Linear Technology

IC POE 802.3AT INTERFACE 12-DFN

Package: 12-WFDFN Exposed Pad

Stock15,360
LTC4267CGN#PBF
Linear Technology

IC POE 802.3AF PD W/REG 16-SSOP

Package: 16-SSOP (0.154", 3.90mm Width)

Stock17,040
LTC4265CDE#PBF
Linear Technology

IC POE 802.3AT INTERFACE 12-DFN

Package: 12-WFDFN Exposed Pad

Stock9,960
LTC4279IUFD
Linear Technology

IC POWER MANAGEMENT

Package: 20-WFQFN Exposed Pad

Stock6,560
LTC4278IDKD-1
Linear Technology

IC POWER MANAGEMENT

Package: 32-WFDFN Exposed Pad

Stock5,824
LTC4278IDKD
Linear Technology

IC POWER MANAGEMENT

Package: 32-WFDFN Exposed Pad

Stock3,760

Part Number	Manufacturer	Description	Package	Stock	Number of Channels	Power - Max	Internal Switch(s)	Auxiliary Sense	Standards	Voltage - Supply	Current - Supply	Operating Temperature	Package / Case	Supplier Device Package
LTC4274AIUHF-4#PBF	Linear Technology	IC CONTROLLER POE 38-QFN Type: Controller (PSE) Number of Channels: 1 Power - Max: 90W Internal Switch(s): No Auxiliary Sense: No Standards: 802.3at (PoE+), 802.3af (PoE), LTPoE++ Voltage - Supply: 45 V ~ 57 V Current - Supply: 2.4mA Operating Temperature: -40°C ~ 85°C Package / Case: 38-WFQFN Exposed Pad Supplier Device Package: 38-QFN (5x7)	Package: 38-WFQFN Exposed Pad	Stock8,232	1	90W	No	No	802.3at (PoE+), 802.3af (PoE), LTPoE++	45 V ~ 57 V	2.4mA	-40°C ~ 85°C	38-WFQFN Exposed Pad	38-QFN (5x7)
LTC4274AIUHF-1#PBF	Linear Technology	IC CONTROLLER POE 38-QFN Type: Controller (PSE) Number of Channels: 1 Power - Max: 38.7W Internal Switch(s): No Auxiliary Sense: No Standards: 802.3at (PoE+), 802.3af (PoE), LTPoE++ Voltage - Supply: 45 V ~ 57 V Current - Supply: 2.4mA Operating Temperature: -40°C ~ 85°C Package / Case: 38-WFQFN Exposed Pad Supplier Device Package: 38-QFN (5x7)	Package: 38-WFQFN Exposed Pad	Stock10,260	1	38.7W	No	No	802.3at (PoE+), 802.3af (PoE), LTPoE++	45 V ~ 57 V	2.4mA	-40°C ~ 85°C	38-WFQFN Exposed Pad	38-QFN (5x7)
LTC4263IDE#PBF	Linear Technology	IC POE 803.2AF SINGLE PSE 14-DFN Type: Controller (PSE) Number of Channels: 1 Power - Max: 15.4W Internal Switch(s): Yes Auxiliary Sense: No Standards: 802.3af (PoE) Voltage - Supply: 33 V ~ 66 V Current - Supply: 2mA Operating Temperature: -40°C ~ 85°C Package / Case: 14-WFDFN Exposed Pad Supplier Device Package: 14-DFN (4x3)	Package: 14-WFDFN Exposed Pad	Stock60,288	1	15.4W	Yes	No	802.3af (PoE)	33 V ~ 66 V	2mA	-40°C ~ 85°C	14-WFDFN Exposed Pad	14-DFN (4x3)
LTC4263IS#PBF	Linear Technology	IC POE 803.2AF SINGL PSE 14-SOIC Type: Controller (PSE) Number of Channels: 1 Power - Max: 15.4W Internal Switch(s): Yes Auxiliary Sense: No Standards: 802.3af (PoE) Voltage - Supply: 33 V ~ 66 V Current - Supply: 2mA Operating Temperature: -40°C ~ 85°C Package / Case: 14-SOIC (0.154", 3.90mm Width) Supplier Device Package: 14-SOIC	Package: 14-SOIC (0.154", 3.90mm Width)	Stock14,220	1	15.4W	Yes	No	802.3af (PoE)	33 V ~ 66 V	2mA	-40°C ~ 85°C	14-SOIC (0.154", 3.90mm Width)	14-SOIC
LTC4278IDKD#PBF	Linear Technology	IC POE 802.3AT PD W/REG 32-DFN Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA (Max) Operating Temperature: -40°C ~ 85°C Package / Case: 32-WFDFN Exposed Pad Supplier Device Package: 32-DFN (7x4)	Package: 32-WFDFN Exposed Pad	Stock39,960	1	25.5W	Yes	Yes	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA (Max)	-40°C ~ 85°C	32-WFDFN Exposed Pad	32-DFN (7x4)
LTC4271IUF#PBF	Linear Technology	IC POE 12-/8-PORT PSE 24-QFN Type: Controller (PSE) Number of Channels: - Power - Max: - Internal Switch(s): No Auxiliary Sense: No Standards: - Voltage - Supply: 45 V ~ 57 V Current - Supply: 9mA Operating Temperature: -40°C ~ 85°C Package / Case: 24-WFQFN Exposed Pad Supplier Device Package: 24-QFN (4x4)	Package: 24-WFQFN Exposed Pad	Stock52,608	-	-	No	No	-	45 V ~ 57 V	9mA	-40°C ~ 85°C	24-WFQFN Exposed Pad	24-QFN (4x4)
LTC4269IDKD-1#PBF	Linear Technology	IC POE 802.3AT PD W/REG 32-DFN Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA (Max) Operating Temperature: -40°C ~ 85°C Package / Case: 32-WFDFN Exposed Pad Supplier Device Package: 32-DFN (7x4)	Package: 32-WFDFN Exposed Pad	Stock9,564	1	25.5W	Yes	Yes	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA (Max)	-40°C ~ 85°C	32-WFDFN Exposed Pad	32-DFN (7x4)
LTC4263CS#PBF	Linear Technology	IC POE 803.2AF SINGL PSE 14-SOIC Type: Controller (PSE) Number of Channels: 1 Power - Max: 15.4W Internal Switch(s): Yes Auxiliary Sense: No Standards: 802.3af (PoE) Voltage - Supply: 33 V ~ 66 V Current - Supply: 2mA Operating Temperature: 0°C ~ 70°C Package / Case: 14-SOIC (0.154", 3.90mm Width) Supplier Device Package: 14-SOIC	Package: 14-SOIC (0.154", 3.90mm Width)	Stock5,808	1	15.4W	Yes	No	802.3af (PoE)	33 V ~ 66 V	2mA	0°C ~ 70°C	14-SOIC (0.154", 3.90mm Width)	14-SOIC
LTC4263CDE#PBF	Linear Technology	IC POE 803.2AF SINGLE PSE 14-DFN Type: Controller (PSE) Number of Channels: 1 Power - Max: 15.4W Internal Switch(s): Yes Auxiliary Sense: No Standards: 802.3af (PoE) Voltage - Supply: 33 V ~ 66 V Current - Supply: 2mA Operating Temperature: 0°C ~ 70°C Package / Case: 14-WFDFN Exposed Pad Supplier Device Package: 14-DFN (4x3)	Package: 14-WFDFN Exposed Pad	Stock64,176	1	15.4W	Yes	No	802.3af (PoE)	33 V ~ 66 V	2mA	0°C ~ 70°C	14-WFDFN Exposed Pad	14-DFN (4x3)
LT4276BIUFD#PBF	Linear Technology	IC POE LTPOE INTERFACE 28QFN Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): No Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 60V (Max) Current - Supply: 2mA (Max) Operating Temperature: -40°C ~ 85°C Package / Case: 28-WFQFN Exposed Pad Supplier Device Package: 28-QFN (4x5)	Package: 28-WFQFN Exposed Pad	Stock15,222	1	25.5W	No	Yes	802.3at (PoE+), 802.3af (PoE)	60V (Max)	2mA (Max)	-40°C ~ 85°C	28-WFQFN Exposed Pad	28-QFN (4x5)
LTC4278CDKD#PBF	Linear Technology	IC POE 802.3AT PD W/REG 32-DFN Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA (Max) Operating Temperature: 0°C ~ 70°C Package / Case: 32-WFDFN Exposed Pad Supplier Device Package: 32-DFN (7x4)	Package: 32-WFDFN Exposed Pad	Stock88,668	1	25.5W	Yes	Yes	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA (Max)	0°C ~ 70°C	32-WFDFN Exposed Pad	32-DFN (7x4)
LTC4269CDKD-1#PBF	Linear Technology	IC POE 802.3AT PD W/REG 32-DFN Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA (Max) Operating Temperature: 0°C ~ 70°C Package / Case: 32-WFDFN Exposed Pad Supplier Device Package: 32-DFN (7x4)	Package: 32-WFDFN Exposed Pad	Stock19,488	1	25.5W	Yes	Yes	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA (Max)	0°C ~ 70°C	32-WFDFN Exposed Pad	32-DFN (7x4)
LTC4267IGN-3#PBF	Linear Technology	IC POE 802.3AF PD W/REG 16-SSOP Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 12.95W Internal Switch(s): No Auxiliary Sense: No Standards: 802.3af (PoE) Voltage - Supply: 57V (Max) Current - Supply: 3mA (Max) Operating Temperature: -40°C ~ 85°C Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP	Package: 16-SSOP (0.154", 3.90mm Width)	Stock7,428	1	12.95W	No	No	802.3af (PoE)	57V (Max)	3mA (Max)	-40°C ~ 85°C	16-SSOP (0.154", 3.90mm Width)	16-SSOP
LT4275AIDD#PBF	Linear Technology	IC POE LTPOE INTERFACE 10-DFN Type: Controller (PD) Number of Channels: 1 Power - Max: 90W Internal Switch(s): No Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE), LTPoE++ Voltage - Supply: 23 V ~ 60 V Current - Supply: 2mA (Max) Operating Temperature: -40°C ~ 85°C Package / Case: 10-WFDFN Exposed Pad Supplier Device Package: 10-DFN (3x3)	Package: 10-WFDFN Exposed Pad	Stock20,184	1	90W	No	Yes	802.3at (PoE+), 802.3af (PoE), LTPoE++	23 V ~ 60 V	2mA (Max)	-40°C ~ 85°C	10-WFDFN Exposed Pad	10-DFN (3x3)
LTC4265IDE#PBF	Linear Technology	IC POE 802.3AT INTERFACE 12-DFN Type: Controller (PD) Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: No Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA Operating Temperature: -40°C ~ 85°C Package / Case: 12-WFDFN Exposed Pad Supplier Device Package: 12-DFN (4x3)	Package: 12-WFDFN Exposed Pad	Stock15,360	1	25.5W	Yes	No	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA	-40°C ~ 85°C	12-WFDFN Exposed Pad	12-DFN (4x3)
LTC4267CGN#PBF	Linear Technology	IC POE 802.3AF PD W/REG 16-SSOP Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 12.95W Internal Switch(s): No Auxiliary Sense: No Standards: 802.3af (PoE) Voltage - Supply: 57V (Max) Current - Supply: 3mA (Max) Operating Temperature: 0°C ~ 70°C Package / Case: 16-SSOP (0.154", 3.90mm Width) Supplier Device Package: 16-SSOP	Package: 16-SSOP (0.154", 3.90mm Width)	Stock17,040	1	12.95W	No	No	802.3af (PoE)	57V (Max)	3mA (Max)	0°C ~ 70°C	16-SSOP (0.154", 3.90mm Width)	16-SSOP
LTC4265CDE#PBF	Linear Technology	IC POE 802.3AT INTERFACE 12-DFN Type: Controller (PD) Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: No Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA Operating Temperature: 0°C ~ 70°C Package / Case: 12-WFDFN Exposed Pad Supplier Device Package: 12-DFN (4x3)	Package: 12-WFDFN Exposed Pad	Stock9,960	1	25.5W	Yes	No	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA	0°C ~ 70°C	12-WFDFN Exposed Pad	12-DFN (4x3)
LTC4279IUFD	Linear Technology	IC POWER MANAGEMENT Type: Controller (PSE) Number of Channels: 1 Power - Max: 90W Internal Switch(s): No Auxiliary Sense: No Standards: 802.3at (PoE+), 802.3af (PoE), LTPoE++ Voltage - Supply: 45 V ~ 57 V Current - Supply: 1.7mA Operating Temperature: -40°C ~ 85°C Package / Case: 20-WFQFN Exposed Pad Supplier Device Package: 20-QFN (5x4)	Package: 20-WFQFN Exposed Pad	Stock6,560	1	90W	No	No	802.3at (PoE+), 802.3af (PoE), LTPoE++	45 V ~ 57 V	1.7mA	-40°C ~ 85°C	20-WFQFN Exposed Pad	20-QFN (5x4)
LTC4278IDKD-1	Linear Technology	IC POWER MANAGEMENT Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA (Max) Operating Temperature: -40°C ~ 85°C Package / Case: 32-WFDFN Exposed Pad Supplier Device Package: 32-DFN (7x4)	Package: 32-WFDFN Exposed Pad	Stock5,824	1	25.5W	Yes	Yes	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA (Max)	-40°C ~ 85°C	32-WFDFN Exposed Pad	32-DFN (7x4)
LTC4278IDKD	Linear Technology	IC POWER MANAGEMENT Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA (Max) Operating Temperature: -40°C ~ 85°C Package / Case: 32-WFDFN Exposed Pad Supplier Device Package: 32-DFN (7x4)	Package: 32-WFDFN Exposed Pad	Stock3,760	1	25.5W	Yes	Yes	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA (Max)	-40°C ~ 85°C	32-WFDFN Exposed Pad	32-DFN (7x4)
LTC4278CDKD-1	Linear Technology	IC POWER MANAGEMENT Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA (Max) Operating Temperature: 0°C ~ 70°C Package / Case: 32-WFDFN Exposed Pad Supplier Device Package: 32-DFN (7x4)	Package: 32-WFDFN Exposed Pad	Stock6,528	1	25.5W	Yes	Yes	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA (Max)	0°C ~ 70°C	32-WFDFN Exposed Pad	32-DFN (7x4)
LTC4278CDKD	Linear Technology	IC POWER MANAGEMENT Type: Controller (PD), DC/DC Number of Channels: 1 Power - Max: 25.5W Internal Switch(s): Yes Auxiliary Sense: Yes Standards: 802.3at (PoE+), 802.3af (PoE) Voltage - Supply: 37.2 V ~ 60 V Current - Supply: 1.35mA (Max) Operating Temperature: 0°C ~ 70°C Package / Case: 32-WFDFN Exposed Pad Supplier Device Package: 32-DFN (7x4)	Package: 32-WFDFN Exposed Pad	Stock3,776	1	25.5W	Yes	Yes	802.3at (PoE+), 802.3af (PoE)	37.2 V ~ 60 V	1.35mA (Max)	0°C ~ 70°C	32-WFDFN Exposed Pad	32-DFN (7x4)
LTC4273ITLUK	Linear Technology	IC POWER MANAGEMENT Type: - Number of Channels: - Power - Max: - Internal Switch(s): - Auxiliary Sense: - Standards: - Voltage - Supply: - Current - Supply: - Operating Temperature: - Package / Case: - Supplier Device Package: -	Package: -	Stock2,144	-	-	-	-	-	-	-	-	-	-
LTC4273ITK-1	Linear Technology	IC POWER MANAGEMENT Type: - Number of Channels: - Power - Max: - Internal Switch(s): - Auxiliary Sense: - Standards: - Voltage - Supply: - Current - Supply: - Operating Temperature: - Package / Case: - Supplier Device Package: -	Package: -	Stock6,944	-	-	-	-	-	-	-	-	-	-
LTC4273HTLUK	Linear Technology	IC POWER MANAGEMENT Type: - Number of Channels: - Power - Max: - Internal Switch(s): - Auxiliary Sense: - Standards: - Voltage - Supply: - Current - Supply: - Operating Temperature: - Package / Case: - Supplier Device Package: -	Package: -	Stock5,376	-	-	-	-	-	-	-	-	-	-
LTC4273HTK-1	Linear Technology	IC POWER MANAGEMENT Type: - Number of Channels: - Power - Max: - Internal Switch(s): - Auxiliary Sense: - Standards: - Voltage - Supply: - Current - Supply: - Operating Temperature: - Package / Case: - Supplier Device Package: -	Package: -	Stock5,952	-	-	-	-	-	-	-	-	-	-
LTC4270CIUKG	Linear Technology	IC POWER MANAGEMENT Type: Controller (PSE) Number of Channels: 12 Power - Max: 13W Internal Switch(s): No Auxiliary Sense: No Standards: 802.3at (PoE+), 802.3af (PoE), LTPoE++ Voltage - Supply: 45 V ~ 57 V Current - Supply: 9mA Operating Temperature: -40°C ~ 85°C Package / Case: 52-WFQFN Exposed Pad Supplier Device Package: 52-QFN (7x8)	Package: 52-WFQFN Exposed Pad	Stock6,288	12	13W	No	No	802.3at (PoE+), 802.3af (PoE), LTPoE++	45 V ~ 57 V	9mA	-40°C ~ 85°C	52-WFQFN Exposed Pad	52-QFN (7x8)
LTC4270BIUKG	Linear Technology	IC POWER MANAGEMENT Type: Controller (PSE) Number of Channels: 12 Power - Max: 25.5W Internal Switch(s): No Auxiliary Sense: No Standards: 802.3at (PoE+), 802.3af (PoE), LTPoE++ Voltage - Supply: 45 V ~ 57 V Current - Supply: 9mA Operating Temperature: -40°C ~ 85°C Package / Case: 52-WFQFN Exposed Pad Supplier Device Package: 52-QFN (7x8)	Package: 52-WFQFN Exposed Pad	Stock18,780	12	25.5W	No	No	802.3at (PoE+), 802.3af (PoE), LTPoE++	45 V ~ 57 V	9mA	-40°C ~ 85°C	52-WFQFN Exposed Pad	52-QFN (7x8)