Description

The FAN4860 is a low-power boost regulator designed to provide a regulated 5V output from a single cell Li-Ion battery. The output voltage is fixed at 5.0V with a guaranteed maximum load current of 200mA at VIN=2.3V and 300mA at VIN=3.3V. Input current in shut-down mode is less than 1µA, which maximizes battery life.

Features

■ Operates with Very Small External Components: 1μH Inductor and 0402 Case Size Input and Output Capacitors

■ Input Voltage Range from 2.3V to 4.5V

■ Fixed 5.0V Output Voltage

■ Maximum Load Current 200mA at VIN=2.3V

■ Maximum Load Current 300mA at VIN=3.3V

■ Up to 92 Efficient

■ Low Operating Quiescent Current

■ True Load Disconnect During Shutdown

■ Variable On-time Pulse Frequency Modulation (PFM) with Light-Load Power-Saving Mode

■ Internal Synchronous Rectifier (No External Diode Needed)

■ Thermal Shutdown and Overload Protection

■ 6-Pin 2 x 2mm UMLP

■ 6-Bump WLCSP, 0.4mm Pitch

Applications

■ USB “On the Go” 5V Supply

■ HDMI 5V Supply

■ 5V Supply for H-Bridge Motor Drivers

■ Powering 5V Peripherals

■ Supply Source for WLED Torch and Flash Lighting

■ PDAs, Portable Media Players

■ Cell Phones, Smart Phones, Portable Instruments