LTC2952IF#PBF

LTC2952 is a power management device. It features three main functions: pushbutton on/off control of system power, ideal diode PowerPath™ controllers and system monitoring. This device’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. The ideal diode PowerPath controllers provide automatic low loss switchover between two DC sources by regulating two external P-channel MOSFETs to have a small 20mV forward drop. High reliability systems may utilize the device’s monitoring features to ensure system integrity. It operates over a wide operating voltage range to accommodate a large variety of input power supplies. It is used in application like desktop and notebook computers, portable instrumentations, PDA and handheld computers, servers and computer peripherals, battery backup systems etc.

• Automatic low loss switchover between DC sources
• Wide operating voltage range is 2.7V to 28V
• Adjustable pushbutton On/Off timers
• Simple interface allows graceful μP shutdown
• ±8KV HBM ESD on PB input
• Reset timeout period is 200ms typical at (TA = 25°C. V1 = V2 = VS = 2.7V to 28V)
• Watchdog timeout period is 1.6s typical at (TA = 25°C. V1 = V2 = VS = 2.7V to 28V)
• Operating temperature is -40°C to 85°C
• Package style is 20-lead plastic TSSOP

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