MP9488 Capacitor C4

Hi,

i want to use two MP9488 to convert 230V AC to 100V DC and -100V DC.
The Datasheet is great help, but I have one small problem:

There is no description what size C4, the Capacitor between VCC and SW, is supposed to be. Is it just fix 2.2uF?
I need it even if i use externel 5V for VCC, dont I?

Thanks in advance!
Thom

Hi thom.ran,

Welcome to the MPS Technical Forum. I will look into your question and responded with clarifying questions if needed or updates once available.