The LTC4269IDKD-1#TRPBF is an integrated Powered Device (PD) controller and switching regulator intended for high power IEEE 802.3at and 802.3af applications. The LTC4269IDKD-1#TRPBF 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 LTC4269IDKD-1#TRPBF can be used in a wide range of product configurations.

The LTC4269IDKD-1#TRPBF 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 LTC4269IDKD-1#TRPBF includespatented 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.

AllPD solutions from ADI include a shutdown pin to provide flexible auxiliary power options. The LTC4269IDKD-1#TRPBF can accommodate adaptor voltages from 18V to 60V and supports both PoE or aux dominance options. The LTC4269IDKD-1#TRPBF is available in a space saving 32-pin DFN package.

Feature

Applications

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