TPS2553: TPS2553 input and output capacitance value choose

Part Number: TPS2553

Tool/software:

Hi team:

       we have a question when we use the part TPS2553, especially for the input and output capacitance value for choose.

       our schematic diagram as follows:

       

      background:

       the load the output of TPS2553 is 60mA at max value(when power up). normal load is 30mA。

      question:

       we think the output and input capacitance is a little big, can we use a smaller one?

       we want to know what should be the smallest value of the input and output capacitance? is there any document theory can share with us?