DC-DC芯片/TPS62204DBV
DESCRIPON
The TPS6220x 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.
FEATURES
• High Efficiency Synchronous Step-Down Converter With up to 95% Efficiency
• 2.5 V to 6.0 V Input Voltage Range
• Adjustable Output Voltage Range From 0.7 V to VI
• Fixed Output Voltage Options Available
• Up to 300 mA Output Current
• 1 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 a Tiny 5-Pin SOT23 Package
APPLICATIONS
• PDAs and Pocket PC
• Cellular Phones, Smart Phones
• Low Power DSP Supply
• Digital Cameras
• Portable Media Players
• Portable Equipment