Description

The FAN5340 is a synchronous constant-current LED driver capable of efficiently delivering up to 500mW to a string of up to four LEDs in series. Optimized for small form-factor applications, the 1.2MHz fixed switching frequency allows the use of chip inductors and capacitors.

Features

■ Synchronous Current-Mode Boost Converter

■ Up to 500mW Output Power

■ Supports 2, 3, or 4 LEDs in Series

■ 2.7V to 4.8V Input Voltage Range

■ 1.2MHz Fixed Switching Frequency

■ 1mA Maximum Quiescent Current

■ Soft-Start Capability

■ Input Under-Voltage Lockout (UVLO)

■ Output Over-Voltage Protection (OVP)

■ Short-Circuit Detection

■ Thermal Shutdown (TSD) Protection

■ 8-Lead 3.00 x 3.00mm MLP

■ 8-Bump 1.57 x 1.57mm WLCSP

Applications

■ Cellular Phones, Smart Phones

■ Pocket PCs

■ WLAN DC-DC Converter Modules

■ PDA, DSC, PMP, and MP3 Players