SGM3140
SGM3140 is 500mA Buck/Boost Charge Pump LED Driver manufactured by SG Micro.
SGM3140 500mA Buck/Boost Charge Pump LED Driver
GENERAL DESCRIPTION
The SGM3140 is a current-regulated buck/boost charge pump LED driver capable of driving 500mA output current. It is ideal for powering high brightness LEDs for camera flash applications. The SGM3140 has 1×/2× operation mode to control the output current for flash and torch modes.
The supply voltage operates from 2.7V to 5.5V and is well suited for various applications powered by a 1-cell Li-Ion battery, as well as 3-cell or 4-cell NiCd, NiMH or Alkaline batteries. The SGM3140 automatically converts between boost and buck modes. Therefore, it ensures that LED current cannot be restricted by the forward voltage. High...
