Abstract: Undershoot reduction circuitry includes, for example, a first comparator, a second comparator, and a controller. The first comparator is operable for comparing an indication of a power supply voltage output against a first threshold. The second comparator is operable for comparing an indication of the power supply voltage output against a second threshold. The controller is operable for generating a first power control signal to raise the power supply voltage output when the indication of the power supply voltage output has a first slope and crosses the first threshold and to lower the power supply voltage output when the indication of the power supply voltage output has an opposite slope and crosses the second threshold.