DESCRIPTION
The LTC®2953 is a push button On/Off controller that manages system power via a push button interface. An enable output toggles system power while an interrupt output provides debounced push button status. The interrupt output can be used in menu driven applications to request a system power down.

FEATURES
■ Wide Operating Voltage Range: 2.7V to 27V
■ Push Button Control of System Power
■ Low Supply Current: 14μA
■ Power Fail Comparator Generates Warning
■ UVLO Comparator Gracefully Latches Power Off
■ Adjustable Supply Monitor with 200ms Reset
■ Adjustable Power Down Timer
■ Low Leakage EN Output (LTC2953-1) Allows DC/DC Converter Control
■ High Voltage ⎯E⎯N Output (LTC2953-2) Allows Circuit Breaker Control
■ Simple Interface Allows Orderly System Power Up and Power Down
■ ±1.5% Threshold Tolerances
■ ±10kV ESD HBM on ⎯P⎯B Input
■ 12-Pin 3mm × 3mm DFN

APPLICATIONS
■ Push Button Power Path Control
■ Battery Power Supervisor
■ Portable Instrumentation, PDA
■ Blade Servers
■ Desktop and Notebook Computers