Patent ID: 7439718

Claim:
A high-speed voltage regulating apparatus, the apparatus comprising: a regulator, adapted to provide a regulated voltage; switching circuitry, coupled to the regulator, adapted to either (i) couple the regulator to an output node or (ii) disconnect the regulator from the output node; whereas the output node is coupled to a dynamic power consuming device and to a load capacitor; and control logic, coupled to the regulator, adapted to receive at least an indication reflecting a voltage of the output node and to control the switching circuitry such that the regulator is disconnected from the output node to facilitate a decrease in the voltage of the output nodes; wherein the apparatus is further adapted to stop a decrement of the voltage of the output node when the voltage of the output node reaches a voltage threshold that enables the dynamic power consuming device to operate at a power consuming mode out of different power consuming modes of the dynamic power consuming device; wherein the apparatus is further adapted to constantly provide a charging current to the load capacitor and to the dynamic power consuming device the while the regulator is disconnected from the output node.