I'm wodering the reason why C25/1uF is used near the ACP pin.
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C25 connects from ACP to GND and helps with common-mode filtering. In fact, all 4 capacitors in the screenshot you sent are used for filtering, as described below:
However, C25 is not necessary, and you can safely leave it out of your circuit. The typical application diagram in the datasheet also omits this capacitor.