RT4503 Datasheet (Richtek Technology) - Asynchronous Boost Converter

RT4503, Asynchronous Boost Converter

The RT4503/A is a highly integrated LED driver IC capable of driving 10 WLEDs in series.

It is composed of a current mode Boost converter integrated with a 36V/1.2A power switch.

The RT4503/A supports a wide input voltage range from 2.5V to 5.5V and runs at a fixed frequency of 550kHz.

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RT4503 Features

* 2.5V to 5.5V Input Voltage Range

* 36V Open LED Protection for 10 WLEDs

* Pulse Dimming Brightness Control

* 200mV Reference Voltage with ±2% Accuracy

* 550kHz Switching Frequency

* Built-In Soft-Start

* Over-Temperature Protection

* Internal Compensation

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