TPS610982: Input and output capacitor value

Hi...

My customer designed the typical application of TPS610982 on their board as follows.

But VDDS(CR1632 Coin cell) voltage was dropped when power of DC3P3V and LDO2P8V was turned on.

I think that this voltage drop was caused by inrush current at initial power up condition.

So my customer changed input capacitor value from 10uF(C2) to 0.1uF, output capacitor values from 10uF(C1) to 1uF and 10uF(C28) to 1uF.

And then there was no voltage drop after that.

But these capacitor values are out of range from recommended operating conditions in datasheet except C28(1uF).

Is there any advice or solution?

Please let me know that.

Regards.