LTC2951

The LTC^®2951 is a micropower, wide input voltage range push button ON/OFF controller. The part contains a push button input which controls the toggling of an open drain enable output. The push button turn OFF debounce time is externally programmable, while the turn ON debounce time is fi xed at 128ms. A simple microprocessor interface allows for proper system housekeeping prior to power down. Under system fault conditions, an adjustable KILL timeout delay ensures proper power down.

The LTC2951 operates over a 2.7V to 26V input voltage range to accommodate a variety of input power supplies. Very low quiescent current (6A typical) makes the LTC2951 ideally suited for battery powered applications. Two versions of the part are available to accommodate either positive or negative enable polarities. The parts are available in 8-pin 3mm * 2mm DFN and ThinSOT packages.