Datasheet4U Logo Datasheet4U.com

VA7920 - HIGH EFFICIENCY DC-DC STEP UP CONVERT

Download the VA7920 datasheet PDF (VA7910 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for high efficiency dc-dc step up convert.

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.

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

📁 Similar Datasheet

  • VA720-1 - Color TFT LCD Display Service Manual (ViewSonic)
  • VA720-2 - Color TFT LCD Display Service Manual (ViewSonic)
Other Datasheets by Vimicro
  • VA7910 - HIGH EFFICIENCY DC-DC STEP UP CONVERT
  • VA7021 - High precision lithium battery protection
  • VA7022 - High-Precision Dual-Cell Lithium Battery Protection
  • VA7070 - High-precision lithium battery protection
  • VA7071 - High-Precision Lithium Battery Protection
  • VA7205 - Precision linear battery charger control circuit
  • VA7205 - Advanced Linear Charger IC
  • VA7208 - Advanced Linear Charger IC

Full PDF Text Transcription

Click to expand full 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.
Published: |