Output capacitor for TPS54372

I would like to know the output capacitor for TPS54372.

The customer will use TPS54372 with +/-(sorce/sink) 0.5A.
And they want to reduce capacitance value for output capacitor (ex. 56uF*2 or 56uF*1).

In the case of using the small capacitor (112uF or 56uF),
are there any cautions with the small capacitor?

And in this case, how do we decide the phase compencation circuit?
I could not find the phase compencation in the datasheet.

Best regards,
Atsushi Yamauchi