The BQ2573xEVM evaluation module (EVM) is a complete charger module for evaluating the BQ25730. The application curves were taken using the BQ2573xEVM.

As shown in Figure 9-1, at the charger VSYS terminal, a minimum 7-μF effective MLCC capacitance (7 × 10-μF 0603 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 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.