Description
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.
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;.
- Little external elements.
- Ultra small TSSOP8, MSOP8 package;.
VA7910-Vimicro.pdf
