TPS62021DRCR

600毫安/ 1.25 MHz的高效率降压转换器 600 mA/1.25 MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER

DESCRIPON

The TPS6202x is a high efficiency synchronous step-down dc-dc converter optimized for battery powered portable applications. This device is ideal for portable applications powered by a single Li-Ion battery cell or by 3-cell NiMH/NiCd batteries. With an output voltage range from 6.0 V down to 0.7 V, the device supports low voltage DSPs and processors in PDAs, pocket PCs, as well as notebooks and subnotebook computers.

FEATURES

• Up to 95% Conversion Efficiency

• Typical Quiescent Current: 18 µA

• Load Current: 600 mA

• Operating Input Voltage Range: 2.5 V to 6.0 V

• Switching Frequency: 1.25 MHz

• Adjustable and Fixed Output Voltage

• Power Save Mode Operation at Light load Currents

• Active-Low MODE pin on TPS62021

• 100% Duty Cycle for Lowest Dropout

• Internal Softstart

• Dynamic Output Voltage Positioning

• Thermal Shutdown

• Short-Circuit Protection

• 10 Pin MSOP PowerPad™ Package

• 10 Pin QFN 3 X 3 mm Package

APPLICATIONS

• PDA, Pocket PC and Smart Phones

• USB Powered Modems

• CPUs and DSPs

• PC Cards and Notebooks

• xDSL Applications

• Standard 5-V to 3.3-V Conversion