The LTC2950 and LTC2951 push button on/off controllers feature low quiescent current of 6μA, and a wide voltage input range. These parts also contain a push button input with independently programmable ON and OFF debounce times that control the toggling of an open drain enable output, and a simple microprocessor interface to allow for proper system housekeeping prior to power down. Under system fault conditions, an internal KILL timer ensures proper power down.