The BQ2572xEVM evaluation module (EVM) is a complete charger module for evaluating the BQ25723. The application curves were taken using the BQ2572xEVM.

At the VBUS input with a 2.2-μH or smaller inductor, a minimum 4 μF effective (4 × 10-μF MLCC) is suggested for a 45-W to 65-W adapter, and two more 10-μF MLCC capacitors are needed when power reaches 90 W. Note when VAP feature is employed, 1 × 33-μF POSCAP is recommended to be added to improve VAP feature performance and finally system CPU performance.

At the charger VSYS output terminal, a minimum 7 μF effective (7 × 10-μF 0805 package MLCC) is suggested for a 45-W to 65-W adapter, and two more 10-μF MLCC capacitors are needed when power reaches 90 W. Overall 50-μF effective distributed capacitance on VSYS net is necessary (POSCAP is preferred), these capacitors do not have to be placed at the charger VSYS output terminal, all capacitors connected to VSYS net can be counted including the input capacitor of the next stage converters.