• Part: SGM3131
  • Manufacturer: SG Micro
  • Size: 633.51 KB
Download SGM3131 Datasheet PDF
SGM3131 datasheet preview
SGM3131 page 2
Page 2
SGM3131 page 3
Page 3

SGM3131 Key Features

  • Input Voltage Range: 2.7V to 5.5V
  • Support up to 4 LEDs at 30mA Each
  • 16-Step LED Brightness Control Through One-Wire
  • 1× and 1.5× Charge Pump for High Conversion
  • Switching Frequency: 1MHz
  • 1% Regulated LED Current Matching
  • Built-in Soft-Start for Reducing Inrush Current
  • Low Input Ripple and Low EMI
  • Protection Features
  • Operating Temperature Range: -40℃ to +85℃

SGM3131 Description

The SGM3131 is a current-regulated white LED driver with integrated low dropout current sources and a high efficiency charge pump. The charge pump has automatically selectable 1×/1.5× fractional operation modes. The SGM3131 is well suited for white LED applications powered by a Li-Ion battery due to small equivalent open-loop resistance in 1× mode.

SGM3131 Applications

  • Input Voltage Range: 2.7V to 5.5V
  • Support up to 4 LEDs at 30mA Each