SGM3122 Datasheet - Shengbang Microelectronics

SGM3122 - Charge Pump White LED Driver

The SGM3122 is a current-regulated white LED driver with integrated low dropout current sources and a high efficiency charge pump. The charge pump has 1×/1.5× fractional operation mode. The SGM3122 is designed for LCD display backlight applications. The supply voltage operates from 2.7V to 5.5V and .

SGM3122 Features

* Input Voltage Range: 2.7V to 5.5V

* Support up to 4 LEDs at 30mA Each

* LED Brightness Control through PWM Signal

* 1× and 1.5× Charge Pump for High Conversion Efficiency

* Switching Frequency: 1MHz

* 0.5% Regulated Output Current Matching

* Built-in Soft-Start for Redu

SGM3122-ShengbangMicroelectronics.pdf