ADI LTC2950ITS8-2#TRPBF

The LTC2950 is a micropower, wide input voltage range, push-button on/off controller. The device includes a push-button input with independently programmable on and off debounce times for controlling the level transition of an open-drain enable output. The device also includes a simple microprocessor interface to facilitate proper system housekeeping prior to power-down. In the event of a system fault condition, an internal KILL timer ensures proper power-down. The LTC2950 operates over a wide input voltage range of 2.7V to 26V to accommodate a wide variety of input power supplies. The very low quiescent current (typically 6μA) makes the LTC2950 ideal for battery-powered applications. The device is available in two versions to provide either positive or negative enable polarity. Package options include an 8-lead 3mm×2mm DFN or ThinSOT.

• Adjustable push-button on/off timer
• Low supply current: 6μA
• Wide operating voltage range: 2.7V to 26V
• EN output (LTC2950-1) for DC/DC converter control
• EN output (LTC2950-2) for circuit breaker control
• Simple interface for graceful microprocessor shutdown
• High input voltage PB pin with internal pull-up resistor
• ±10kV ESD HBM protection on PB input
• Accurate 0.6V threshold on KILL comparator input
• Available in 8-lead 3mm×2mm DFN and ThinSOT packages

• Portable instruments
• Blade servers
• Portable customer service PDAs
• Desktop and laptop computers