Description
The FAN5341 is an asynchronous constant-current LED driver capable of efficiently delivering up to 500mW to a string of up to five LEDs in series. Optimized for small form factor applications, the 1.2MHz fixed switching frequency allows the use of small chip inductors and capacitors.

FEATUREs
■ Asynchronous Boost Converter
■ Internal Schottky Diode
■ Up to 500mW Output Power
■ Drives 3 to 5 LEDs in Series
■ 2.7V to 5.5V Input Voltage Range
■ Single-Wire Digital Control Interface to Set LED Brightness Levels
    − 32 Linear Steps
■ 1.2MHz Fixed Switching Frequency
■ Soft-Start Capability
■ Input Under-Voltage Lockout (UVLO)
■ Output Over-Voltage Protection (OVP)
■ Short-Circuit Detection
■ Thermal Shutdown (TSD) Protection
■ Low Profile 6-lead 2.0 x 2.0 x 0.55mm UMLP Package

APPLICATIONs
■ Cellular Mobile Handsets
■ Mobile Internet Devices
■ Portable Media Players
■ PDA, DSC, MP3 Players