Patent ID: 6639390
Filing Date: 2003-10-28
Classification: G05F

Abstract:
A capacitively compensated voltage regulator, adapted to be supplied with power from a voltage supply, and having an input port and an output port, comprising:a voltage regulation circuit responsive to a reference voltage at the input port to provide a regulated voltage at the output port, including a compensation capacitor having a plate connected to a node internal to the voltage regulator, and including a current source coupled between the voltage supply and the internal node; and a low power control circuit responsive to a low power command signal, comprising a delay circuit responsive to a transition in the level of the low power command signal to generate a low power control signal for a predetermined time period after said transition, and a bypass circuit coupled between the internal node and the voltage supply, responsive to the low power control signal to provide, for the predetermined time period, a current higher than the current provided by the current source, and otherwise to provide substantially no current.