Efficient voltage conversion

A method for providing on-chip voltage-regulated power, the method comprising:

• converting a power input to a power output by operating a switched capacitor voltage conversion circuit at a base rate during normal power demand conditions and an elevated rate during elevated power demand conditions;
• and
• wherein the switched capacitor voltage conversion circuit comprises an auxiliary set of transistors that are disabled during normal power demand conditions and enabled during elevated power demand conditions;
• and
• monitoring a monitored power signal and activating an elevated power demand signal in response to the monitored power signal dropping below a selected voltage level.

An apparatus for providing on-chip voltage-regulated power, the apparatus comprising:

• a droop detection circuit configured to monitor a monitored power signal and activate an elevated power demand signal in response to the monitored power signal dropping below a selected voltage level and deactivate the elevated power demand signal in response to the monitored power signal rising above the selected voltage level;
• a switched capacitor voltage conversion circuit comprising a base set of transistors and an auxiliary set of transistors, the switched capacitor voltage conversion circuit configured to receive an elevated power demand signal and operate at a base rate when the elevated power demand signal is not active and an elevated rate when the elevated power demand signal is active;
• wherein the auxiliary set of transistors are disabled when the elevated power demand signal is not active and enabled when the elevated power demand signal is active;
• and
• wherein the auxiliary set of transistors reduce an RC time constant of the switched capacitor voltage conversion circuit when enabled.