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TPS62040 Datasheet 1.2A/1.25MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER

Manufacturer: Texas Instruments

Overview: www.ti.com TPS62040 TPS62042, TPS62043 TPS62044, TPS62046 SLVS463B − JUNE 2003 − REVISED OCTOBER 2005 1.2 A/1.

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General Description

The TPS6204x family of devices are high efficiency synchronous step-down dc-dc converters optimized for battery powered portable applications.

The devices are 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 devices support low voltage DSPs and processors in PDAs, pocket PCs, as well as notebooks and subnotebook computers.

Key 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.

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