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SGM3140

Part Number	SGM3140
Manufacturer	Shengbang Microelectronics
Description	500mA Buck/Boost Charge Pump LED Driver
Published	May 17, 2016
Detailed Description	SGM3140 500mA Buck/Boost Charge Pump LED Driver GENERAL DESCRIPTION The SGM3140 is a current-regulated charge pump idea...
Datasheet	SGM3140 PDF File

Overview

SGM3140 500mA Buck/Boost Charge Pump LED Driver GENERAL DESCRIPTION The SGM3140 is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications.
The charge pump can be set to regulate two current levels for Flash and Torch modes.
The SGM3140 automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage.
It switches at 2.
2MHz, allowing the use of tiny components.
The supply voltage ranges from 2.
7V to 5.
5V and is ideally suited for all applications powered by a single Li-ion battery cell or three to four NiCd, NiMH, or Alkaline battery cells.
The SGM3140 also features a very low shutdown cu...

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