The LM2747 design shown here illustrates some aspects of what was just covered. In the upper right corner of this slide is the circuit’s load transient response. The peak-to-peak voltage excursion is 40mV with a 45 to 100% load step. The tradeoff is the 1MHz switching frequency used to accomplish this transient performance reduces efficiency to a peak of 81%, whereas the IC is otherwise capable of delivering efficiencies in excess of 90%. The scope image on the lower right shows a ripple voltage of just a few millivolts. This is partly accomplished by the use of parallel ceramic capacitors on the output. Details are available in AN1603 found at the hyperlink location on the slide.