I'm implementing a +5V to -20V regulator with an output current requirement around 10-20 mA. Because of the low current, I'm anticipating that pulse-skipping mode may kick in, which I want to avoid to decrease ripple. I've currently specified 10 uH for both the inductors and 1 uF for the Cuk capacitor. So my question is, if I detect pulse-skipping mode, which components can I try adjusting to mitigate this? For example, increasing one or both inductors, or decreasing the Cuk capacitor.
Note that I'm currently awaiting the delivery of the prototype board and components, and asking for advice ahead of time.
