TPS62223DDCR

400毫安， 1.25 MHz的高效率，降压转换器在薄SOT23 400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23

DESCRIPON

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