LTC4269IDKD-1#PBF

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Analog Devices

IEEE 802.3AT HIGH POWER PD AND NO-OPTO FLYBACK CONTROLLER WITH AUX SUPPORT

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DocumentsR535 Reliability Data Datasheet

LTC4269IDKD-1#PBF

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Analog Devices

IEEE 802.3AT HIGH POWER PD AND NO-OPTO FLYBACK CONTROLLER WITH AUX SUPPORT

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Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC4269IDKD-1#PBF

Auxiliary Sense	True
Current - Supply [Max]	1.35 mA
Internal Switch(s)	True
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	32-WFDFN Exposed Pad
Power - Max [Max]	25.5 W
Standards	802.3at (PoE+), 802.3af (PoE)
Supplier Device Package	32-DFN (7x4)
Type	Controller (PD), DC/DC
Voltage - Supply [Max]	60 V
Voltage - Supply [Min]	37.2 V

LTC4269-2 Series

IEEE 802.3at High Power PD and Synchronous Forward Controller with AUX Support

Part	Mounting Type	Supplier Device Package	Number of Channels	Current - Supply [Max]	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Type	Standards	Power - Max [Max]	Supplied Contents	Contents	Function	Utilized IC / Part
Analog Devices LTC4269CDKD-2#TRPBF	Surface Mount	32-DFN (7x4)	1	1.35 mA	60 V	37.2 V	32-WFDFN Exposed Pad	70 °C	0 °C	Controller (PD) DC/DC	802.3af (PoE) 802.3at (PoE+)	25.5 W
Analog Devices DC1335A-A										Power Management			Board(s)	Board(s)	Power Over Ethernet (POE)	LTC4269-1
Analog Devices LTC4269IDKD-2#TRPBF	Surface Mount	32-DFN (7x4)	1	1.35 mA	60 V	37.2 V	32-WFDFN Exposed Pad	85 °C	-40 °C	Controller (PD) DC/DC	802.3af (PoE) 802.3at (PoE+)	25.5 W
Analog Devices LTC4269IDKD-2#PBF	Surface Mount	32-DFN (7x4)	1	1.35 mA	60 V	37.2 V	32-WFDFN Exposed Pad	85 °C	-40 °C	Controller (PD) DC/DC	802.3af (PoE) 802.3at (PoE+)	25.5 W
Analog Devices LTC4269CDKD-1#TRPBF	Surface Mount	32-DFN (7x4)	1	1.35 mA	60 V	37.2 V	32-WFDFN Exposed Pad	70 °C	0 °C	Controller (PD) DC/DC	802.3af (PoE) 802.3at (PoE+)	25.5 W
Analog Devices LTC4269IDKD-1#TRPBF	Surface Mount	32-DFN (7x4)	1	1.35 mA	60 V	37.2 V	32-WFDFN Exposed Pad	85 °C	-40 °C	Controller (PD) DC/DC	802.3af (PoE) 802.3at (PoE+)	25.5 W
Analog Devices LTC4269IDKD-1#PBF	Surface Mount	32-DFN (7x4)	1	1.35 mA	60 V	37.2 V	32-WFDFN Exposed Pad	85 °C	-40 °C	Controller (PD) DC/DC	802.3af (PoE) 802.3at (PoE+)	25.5 W

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 8.66
		10	$ 5.96
		25	$ 5.27
		100	$ 4.49
		250	$ 4.11
		500	$ 3.88
		1000	$ 3.69
		2500	$ 3.56

Description

General part information

LTC4269-2 Series

The LTC4269-1 is an integrated Powered Device (PD) controller and switching regulator intended for high power IEEE 802.3at and 802.3af applications. The LTC4269-1 is targeted for high efficiency, single and multioutput applications from 10W to 25W. By supporting both 1-event and 2-event classifications, as defined by the IEEE, the LTC4269-1 can be used in a wide range of product configurations.The LTC4269-1 synchronous, current mode, flyback controller generates multiple supply rails in a single conversion step providing for the highest system efficiency while maintaining tight regulation across all outputs. The LTC4269-1 includes patented No-Opto feedback topology to provide full IEEE 802.3 isolation without the need of an opto-isolator circuit. A true soft-start function allows graceful ramp-up of all output voltages.All PD solutions from ADI include a shutdown pin to provide flexible auxiliary power options. The LTC4269-1 can accommodate adaptor voltages from 18V to 60V and supports both PoE or aux dominance options. The LTC4269-1 is available in a space saving 32-pin DFN package.ApplicationsVoIP Phones with Advanced Display OptionsDual-Radio Wireless Access PointsPTZ Security CamerasRFID ReadersIndustrial Controls