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TPS62220

Texas Instruments
Part Number TPS62220
Manufacturer Texas Instruments
Description 400-mA 1.25-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER
Published Sep 30, 2019
Detailed Description TPS62220, TPS62221, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.ti.com......
Datasheet PDF File TPS62220 PDF File

TPS62220
TPS62220

Overview
TPS62220, TPS62221, TPS62222 TPS62223, TPS62224, TPS62225 TPS62227, TPS62228, TPS62229 www.
ti.
com SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 400-mA, 1.
25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23 FEATURES 1 •2 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 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.
With an output voltage range of 6 V down to 0.
7 V and up to 400-mA output current, the devices are ideal for powering the low voltage TMS320™ DSP family and processors used in PDAs, pocket PCs, and smart phones.
Under nominal load current, the devices operate with a fixed switching frequency of typically 1.
25 MHz.
At light load currents, the part enters the power-save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, the device achieves the highest efficiency over the entire load current range.
The TPS6222x needs only three small external components.
Together with the tiny TSOT23 package, a minimum system sol...


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