8.2.2.3 Input Capacitor Selection

The TPS563231 requires an input decoupling capacitor and a bulk capacitor is needed depending on the application. TI recommends a ceramic capacitor over 10-µF for the decoupling capacitor. An additional 0.1-µF capacitor from VIN pin to GND pin is also recommended to provide additional high frequency filtering. The capacitor voltage rating needs to be greater than the maximum input voltage, 25 V or higher voltage rating is recommended.