General Description

The AP3029 is an inductor-based DC/DC converter designed to drive up to six white LEDs in series or 2 rows of LEDs with 5 for each in parallel for backlight. Only one feedback resistor is needed to control the LED current and obtain required brightness.

Features

• Inherently Uniform LED Current

• High Efficiency up to 83.5

• No Need for External Schottky Diode

• Over Output Voltage Protection

• Drives 2 to 6 LEDs in Series or 2 Rows of LEDs

with 5 for Each in Parallel

• Fast 1.2MHz Switching Frequency

• Uses Tiny 1mm Tall Inductor

• Requires Only 0.22µF Output Capacitor

Applications

• Cellular Phones

• Digital Cameras

• LCD modules

• GPS Receivers

• PDAs, Handheld Computers