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LT3688 Dual 800mA Step-Down Switching
Regulator with Power-On Reset and Watchdog Timer DESCRIPTION
The LT®3688 is an adjustable frequency (350kHz to 2.
2MHz) dual monolithic step-down switching
regulator with two power-on reset timers and a watchdog timer.
The
regulator operates off inputs up to 36V.
Low ripple Burst Mode® operation maintains high efficiency at low output current while keeping output ripple below 25mV in a typical application, with input quiescent current of just 115μA.
Shutdown circuitry reduces input supply current to less than 1μA while EN/UVLO is pulled low.
The reset and watchdog timeout periods are both adjustable using exte...