• Part: SGM3141B
  • Manufacturer: SG Micro
  • Size: 395.28 KB
Download SGM3141B Datasheet PDF
SGM3141B datasheet preview
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SGM3141B Key Features

  • Output Current Up to 700mA
  • Up to 90% Efficiency in Torch Mode
  • Adjustable Flash Mode Current
  • 1× and 2× Automatic Modes for High Efficiency
  • Input Voltage Range: 2.7V to 5.5V
  • Minimum External ponents: No Inductors
  • High Frequency Operation: 2.2MHz
  • Low 47mV Reference for Low Loss Sensing
  • IQ < 1μA in Shutdown
  • Built-In Soft-Start Limits Inrush Current

SGM3141B Description

The SGM3141B 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 SGM3141B automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage.

SGM3141B Applications

  • Output Current Up to 700mA
  • Up to 90% Efficiency in Torch Mode