DESCRIPTION
The LTC®2952 is a power management device that features three main functions: pushbutton on/off control of system power, ideal diode PowerPath controllers and system monitoring. The LTC2952’s pushbutton input, which provides on/off control of system power, has independently adjustable ON and OFF debounce times. A simple microprocessor interface involving an interrupt signal allows for proper system housekeeping prior to power-down.

FEATURES
Pushbutton On/Off Control
Automatic Low Loss Switchover Between DC Sources
Wide Operating Voltage Range: 2.7V to 28V
Low 25μA Shutdown Current
Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature
Adjustable Pushbutton On/Off Timers
Simple Interface Allows Graceful μP Shutdown
Extendable Housekeeping Wait Time Prior to Shutdown
200ms Reset Delay and 1.6s Watchdog Timeout
±8kV HBM ESD on PBInput
20-pin TSSOP and QFN (4mm ×4mm) Packages

APPLICATIONS
Desktop and Notebook Computers
Portable Instrumentations
Cell Phones, PDA and Handheld Computers
Servers and Computer Peripherals
Battery Backup Systems