SGM3140,PDF数据表下载

SGM3140 pdf资料下载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 current, an automatic soft-start mode to limit inrush current, as well as over-current, over-volt SGM3140YD10G/TRDatasheet pdf资料数据表下载