1. General description

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 H inductor or smaller.

2. Features and benefits

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

3. Applications

Smartphones

NFC terminals