Click to expand full text
www.ti.com
TPS62040 TPS62042, TPS62043 TPS62044, TPS62046
SLVS463B − JUNE 2003 − REVISED OCTOBER 2005
1.2 A/1.25 MHz, HIGH-EFFICIENCY STEP-DOWN CONVERTER
FEATURES
D Up to 95% Conversion Efficiency D Typical Quiescent Current: 18 µA D Load Current: 1.2 A D Operating Input Voltage Range: 2.5 V to 6.0 V D Switching Frequency: 1.25 MHz D Adjustable and Fixed Output Voltage D Power Save Mode Operation at Light load
Currents
D 100% Duty Cycle for Lowest Dropout D Internal Softstart D Dynamic Output Voltage Positioning D Thermal Shutdown D Short-Circuit Protection D 10 Pin MSOP PowerPad™ Package D 10 Pin QFN 3 X 3 mm Package
APPLICATIONS
D PDA, Pocket PC and Smart Phones
D USB Powered Modems
D CPUs and DSPs D PC Cards and Notebooks
D xDSL Applications
D Standard 5-V to 3.