Does higher output ripple of a switching regulator mean better transient performance?
The transient response of a switching regulator depends on several factors; primarily the regulator’s architecture (voltage mode or current mode), the switching frequency, the value of output capacitance, and the inductor value.
The value of output ripple also depends on these factors, but the ripple is an effect not a cause. Higher ripple does not mean you would have a better transient response from your switching regulator.
The Applications section and included formulae on the ADP2118 datasheet (http://www.analog.com/static/imported-files/data_sheets/ADP2118.pdf) will give you some insight into component selection for this switching regulator or you can use our ADIsimPower tool (www.analog.com/power) to perform you design.
Retrieving data ...