RT8537 Datasheet - Richtek

RT8537 Current Mode Boost-Type LED Driver

The RT8537 is a current mode Boost-type LED driver with programmable brightness dimming control for portable devices. With the 40V integrated MOSFET, the RT8537 can support up to 10 LEDs in series and wide input voltage range from 2.9V to 18V. The Boost converter runs at 1.2MHz switching frequency w.

RT8537 Features

* z 32-Step Programmable Digital Dimming z PWM Brightness Dimming z 2.9V to 18V Input Voltage Range z 38V Open LED Protection for 10 LEDs z 200mV Reference with 4% Accuracy z 1.2MHz Switching Frequency z Built-In 1.2A Power Switch z Built-in Internal Soft-Start z Over Temperature Protection z Current

RT8537-Richtek.pdf