> Again, I'm not an EE. However, I'm not sure I agree with this 'conventional
> wisdom'. The point of concern is the impedance of the capacitor at the
> frequency of interest. Although smaller capacitors may have less lead
> inductance, the higher capacitance of the larger ones may result in a lower
> impedance at that frequency, giving better performance.

A large capacitor (low esr) at any regulator output is not to work as a
filter, since a good regulator will do this job, but instead, the large
capacitor is just working as a very low impedance supply for high energy
surges. This is most related to power circuits that needs steady low
impedances supply.

Of course, one can say; "but if a regulator has a negative impedance how
a capacitor can works better?"