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