Forum Post: LM5006 output capacitor

I see on the LM5006 eval board, Vout is set to 5V, and the output capacitor (C2) is 15uF, 16V, X7R.  I have used this exact part in my design and it is working well.  However, I am hoping to replace this capacitor (which is 2.8mm high) with one that is a bit shorter.  So, a couple questions -

Is the 16V rating required for any reason?  Given the 5V output, I would expect plenty of margin with a 10V capacitor?

Any concerns about a X5R, X6S, or X7S capacitor?  I seem to be able to get a much shorter capacitor in these dielectrics instead of X7R.

Thanks,

Dave