VA7910 Datasheet (Vimicro) - HIGH EFFICIENCY DC-DC STEP UP CONVERT

VA7910, HIGH EFFICIENCY DC-DC STEP UP CONVERT

VA7910/VA7920 is a high efficiency DC-DC step up convert circuit widely used for the devices powered by one to three-cells Li-ion/ Li-polymer battery or hydro-nickel battery and need a steady high voltage.

The static operating current of VA7910/VA7920 is extra low.

With an internal synchronous recti

VA7910 Features

* 0.9V start up voltage;

* 0.9V minimum operating voltage;

* Above 95% efficiency;

* Low battery voltage detector;

* Fixed 3.3V and 5V output or adjustable output from 2V to 5V;

* Internal synchronous rectifier;

* Zero shut down current;