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VA7920 - HIGH EFFICIENCY DC-DC STEP UP CONVERT

Download the VA7920 datasheet PDF. This datasheet also covers the VA7910 variant, as both devices belong to the same high efficiency dc-dc step up convert family and are provided as variant models within a single manufacturer datasheet.

General 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.

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

Key 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;.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (VA7910-Vimicro.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number VA7920
Manufacturer Vimicro
File Size 126.24 KB
Description HIGH EFFICIENCY DC-DC STEP UP CONVERT
Datasheet download datasheet VA7920 Datasheet

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Other Datasheets by Vimicro

Part Number Description
VA7910 HIGH EFFICIENCY DC-DC STEP UP CONVERT
VA7021 High precision lithium battery protection
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VA7071 High-Precision Lithium Battery Protection

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
VA7910/VA7920 REV 1.1/Feb 2006 HIGH EFFICIENCY DC-DC STEP UP CONVERT 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; APPLICATION „ One to three-cell battery powered devices; „ PDA and handheld instruments; „ Cell phones; „ Pagers; „ GPS； „ Digital cameras; INTRODUCTION VA7910/VA7920 series circuits are high efficiency DC-DC step up converts, with a few external components to realize the conversion from the battery voltage to the expect output voltage. It can be widely used in PDA 、 cell phones、hand-held devices and so on.