The LTC®2955 is a micropower, pushbutton on/off controller that manages system power by generating a clean enable output from the supply monitor input and the debounced pushbutton input. It features an interrupt output that notifies the system of a pushbutton or low supply event. When the system is ready, it may use the power kill input to shut off power. If the pushbutton remains pressed for more than the configurable turn-off duration, the system power is forced off.
Automatic Turn-On Via Voltage Monitor Input
Low Supply Current: 1.2μA
Low Leakage EN Output Allows DC/DC Converter Control (LTC2955-1)
High Voltage EN Output Drives External P-Channel MOSFET (LTC2955-2)
Simple Interface Allows Graceful μP Shutdown
Adjustable Turn-Off Timer