TPS61097A-33DBVT

TEXAS INSTRUMENTS  TPS61097A-33DBVT  同步升压开关稳压器, 固定, 900mV-5.5V输入, 3.3V Out, SOT-23-5

The is a Boost Converter with bypass switch. It provides a power supply solution for products powered by either a single-cell, two-cell or three-cell alkaline, NiCd or NiMH or one-cell Li-ion or Li-polymer battery. It can also be used in fuel cell or solar cell powered devices where the capability of handling low input voltages is essential. Possible output currents depend on the input-to-output voltage ratio. It provides output currents up to 100mA at a 3.3V output while using a single-cell Li-ion or Li-polymer battery. The boost converter is based on a current-mode controller using synchronous rectification to obtain maximum efficiency. The maximum average input current is limited to a value of 350mA. The output voltage can be programmed by an external resistor divider or it is fixed internally on the chip. The converter can be disabled to minimize battery drain.

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Up to 95% efficiency at typical operating conditions

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Connection from battery to load via bypass switch in shutdown mode

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Power-save mode for improved efficiency at low output power

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Overtemperature protection

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<5nA Typical shutdown current

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<5µA Typical quiescent current

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Green product and no Sb/Br