TPS81256EVM-121

DC to DC Step Up Converter Evaluation Module with 91% Efficiency at 4.5MHz

The is an evaluation module for TPS81256 4.5MHz, step up DC to DC converter. It can also evaluates TPS8125x series of DC to DC converters. The TPS8125x is based on a high frequency synchronous step up DC/DC converter optimized for battery powered portable applications. The DC/DC converter operates at a regulated 4MHz switching frequency and enters power save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the supply current to 43µA typ during light load operation. Intended for low power applications, the TPS8125x supports more than 3W output power over a full Li ion battery voltage range. Input current in shutdown mode is less than 1µA typ, which maximizes battery life.

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91% Efficiency at 4.5MHz

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VIN Range from 2.50V to 4.85V

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0.85µA Quiescent Current in Shutdown Mode

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30µA Quiescent Current in Normal Operation

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VIN > VOUT operation for Vin up to 5.5V

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SMA connector is connected to the output and input voltage node of the converter