The TPS81256EVM-121 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.
- 91% Efficiency at 4.5MHz
- VIN Range from 2.50V to 4.85V
- 0.85μA Quiescent Current in Shutdown Mode
- 30μA Quiescent Current in Normal Operation
- VIN > VOUT operation for Vin up to 5.5V
- SMA connector is connected to the output and input voltage node of the converter
电源管理, 音频, 便携式器材
(EN)
