TPS62201DBV Datasheet

DC/DC Switching Regulators


The TPS62201DBV devices are a family of high-efficiencysynchronous step-down converters ideally suited forportable systems powered by 1-cell Li-Ion or 3-cellNiMH/NiCd batteries. The devices are also suitableto operate from a standard 3.3-V or 5-V voltage rail.With an output voltage range of 6 V down to 0.7 Vand up to 300 mA output current, the devices areideal to power low voltage DSPs and processorsused in PDAs, pocket PCs, and smart phones.Under nominal load current, the devices operate witha fixed switching frequency of typically 1 MHz. Atlight load currents, the part enters the power savemode operation; the switching frequency is reducedand the quiescent current is typically only 15 μA;therefore, it achieves the highest efficiency over theentire load current range. The TPS6220x needs onlythree small external components. Together with theSOT23 package, a minimum system solution size isachieved. An advanced fast response voltage modecontrol scheme achieves superior line and loadregulation with small ceramic input and outputcapacitors. TPS62201DBV Features ·High Efficiency Synchronous Step-DownConverter With up to 95% Efficiency·2.5-V to 6-V Input Voltage Range·Adjustable Output Voltage Range From 0.7 Vto VI·Fixed Output Voltage Options Available·Up to 300 mA Output Current·1-MHz Fixed Frequency PWM Operation·Highest Efficiency Over Wide Load CurrentRange 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 5-Pin SOT23 Package TPS62201DBV Applications ·PDAs and Pocket PC·Cellular Phones, Smart Phones·Low Power DSP Supply·Digital Cameras·Portable Media Players·Portable Equipment


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