Datasheet Texas Instruments TPS62203TDE1 — 数据表

TPS62203-DIE
www.ti.com SLVSBJ6 – AUGUST 2012 HIGH-EFFICIENCY, SOT23 STEP-DOWN, DC-DC CONVERTER
FEATURES 1 High Efficiency Synchronous Step-Down
Converter With up to 95% Efficiency
2.5-V to 6-V Input Voltage Range
Adjustable Output Voltage Range
Fixed Output Voltage Options Available
Output Current
Fixed Frequency PWM Operation
Highest Efficiency Over Wide Load Current
Range Due to Power Save Mode
Quiescent Current
Soft Start 100% Duty Cycle Low-Dropout Operation
Dynamic Output-Voltage Positioning APPLICATIONS PDAs and Pocket PC
Cellular Phones, Smart Phones
Low Power DSP Supply
Digital Cameras
Portable Media Players
Portable Equipment DESCRIPTION
The TPS62203 is a high-efficiency synchronous step-down converter ideally suited for portable systems powered
by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The device is also suitable to operate at a standard voltage rail.
The device is ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones.
Under nominal load current, the device operates with a fixed switching frequency. At light load currents, the part …