TLV61225

采用 6 引脚 SC-70 封装的单节电池高效升压转换器

The device provides a power-supply solution for products powered by either a single-cell or 2-cell alkaline or NiMH, or 1-cell Li-primary battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of this device is set internally to a fixed output voltage of 3.3 V. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package DCK measuring 2 mm × 2 mm to enable small circuit layout size.

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Up to 94% Efficiency at Typical Operating

Conditions

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5-µA Quiescent Current

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Operating Input Voltage from 0.7 V to 3.3 V

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Pass-Through Function During Shutdown

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Output Current of More Than 40-mA From a

1.2-V Input

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Typical Switch Current Rating 400 mA

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Output Overvoltage Protection

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Overtemperature Protection

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Fixed 3.3-V Output Voltage

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Small 6-Pin SC-70 Package

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APPLICA ONS

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Battery-Powered Applications

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1- to 2- Cell NiMH or Alkaline

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1-Cell Li-Primary

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Consumer and Portable Medical Products

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Personal Care Products

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