3.0 MHz, 300 MA, DC-to-DC Boost Converter

PCA9412

The PCA9412 and PCA9412A are highly efficient 3.0 MHz, 300 mA, step-up DC-to-DC converters. They convert input voltages from 2.5 V to 5.25 V to a fixed output voltage of 5.4 V.

These devices are optimized for battery-powered applications. High efficiency of up to 94 % enables an extended battery life in all portable designs. Step-up operation at a switching frequency of 3 MHz allows using 1 µH inductor or smaller.

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PCA9412 Block Diagram

PCA9412 Block Diagram
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Features

  • Efficiency up to 94 %
  • VIN ≥ VO, (Pass-Through Mode Operation)
  • Load disconnect
  • Current-mode controller
  • Soft start function for limiting inrush current with true load disconnect
  • Overcurrent and over-temperature protection
  • The PCA9412 totally disconnects input to output when disabled
  • The PCA9412A connects input to output when disabled
  • Wafer-Level Chip-Size Package (WLCSP) with 0.4 mm pitch; allows for the use of a smaller antenna, or for greater signal strength

Applications

  • Smartphones
  • NFC terminals

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