General Description

The RT9278 is a compact, high efficiency, synchronous step-up converter, it provides a power supply solution for products powered by either two-cell, three-cell Alkaline/NiMH or one-cell Li-Ion/Li-polymer battery.

Features

• 95Efficiency Synchronous Boost Converter

• High Supply Capability

• 2A Current Limit

• Input Voltage Range : 1.5V to 5.5V

• 600kHz Fixed Switching Rate

• Adjustable Output Voltage Options Up to 5.5V

• Output Voltage Keep Regulated when Input Voltage Exceed Setting Output Voltage

• 1mA Supply Current in Shutdown Mode

• External Compensation Network

• Build in Linear Controller for Linear Regulator

• Over Temperature Protection

• Small 10-Lead VDFN Package

• RoHS Compliant and 100 Lead (Pb)-Free

Applications

• Digital Still Camera

• Camera White LED Flash Light

• PDAs

• PortableDevice