TPS62228DDCT Datasheet PDF - TI

●DESCRIPTION

●The TPS6222x devices are a family of high-efficiency, synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

●FEATURES

●• High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency

●• 2.5-V to 6-V Input Voltage Range

●• Adjustable Output Voltage Range From 0.7 V to VI

●• Fixed Output Voltage Options Available

●• Up to 400-mA Output Current

●• 1.25-MHz Fixed Frequency PWM Operation

●• Highest Efficiency Over Wide Load Current Range Due to Power-Save Mode

●• 15 µA Typical Quiescent Current

●• Soft Start

●• 100% Duty Cycle Low-Dropout Operation

●• Dynamic Output-Voltage Positioning

●• Available in TSOT23 Package

●APPLICATIONS

●• PDAs and Pocket PC

●• Cellular Phones, Smart Phones

●• OMAP™ and Low Power DSP Supply

●• Digital Cameras

●• Portable Media Players

●• Portable Equipment

●• WLAN PC Cards