ldo output cap
Thank you.
The role fo output capacitor, as you said, is to make the loop stable, and to reduce the ripple voltage at output.
If the structure of the loop is changed, such as the pass transistor is NMOST and the compensation is realized in the error amplifier, the output capacitor could be free.
In that case of no output capacitor, how could the output voltage responds to the change of transient load current? How about the ripple voltage? TI has products without capacitor, such as TPS73XXX.
I am puzzled to that.