SGM3133 Datasheet - Shengbang Microelectronics

SGM3133 - 4-Channel Charge Pump White LED Driver

The SGM3133 is a high efficiency and cost effective charge pump white LED driver. It supports up to 4 white LEDs and regulates a constant current for uniform intensity. The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources. The small equ.

SGM3133 Features

* Input Voltage Range: 2.7V to 5.5V

* Drives up to 4 LEDs at 20mA Each

* 16-Step Brightness Control

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

* Automatic Charge Pump Mode Selection

* Switching Frequency: 1MHz

* 1% Typical LED Current Matching

SGM3133-ShengbangMicroelectronics.pdf