SGM3124 Datasheet (Shengbang Microelectronics) - White LED Charge Pump Current Source

SGM3124, White LED Charge Pump Current Source

The SGM3124 is a charge pump with PWM brightness control for white LED supplies in LCD display backlight applications.

The supply voltage ranges from 2.7V to 5.5V, it is ideally suited for all applications powered by a single Li-ion battery cell or three to four NiCd, NiMH, or alkaline battery cells

SGM3124 Features

* Input Voltage Range: 2.7V to 5.5V

* Drives up to 3 LEDs at 30mA Each

* LED Brightness Control Through PWM Control Signal

* High Efficiency by Fractional Conversion with 1× and 1.5× Modes

* Switching Frequency: 1MHz

* Regulated Output Current with 0.5