Patent ID: 8026703
Filing Date: 2011-09-27
Classification: G05F

Abstract:
1. A voltage regulator comprising: a standby regulator capable of receiving a reference voltage and outputting a first regulated output voltage when the voltage regulator is in a standby mode, the standby regulator including a high-impedance node; an active regulator capable of receiving a reference voltage and outputting a second regulated output voltage when the voltage regulator is in an active mode, the active regulator including a high-impedance node; a compensation capacitor; and a switching circuit directly electrically connected to the compensation capacitor, the high-impedance node of the standby regulator, and the high-impedance node of the active regulator, the switching circuit configured to electrically connect the compensation capacitor to the high-impedance node of the standby regulator when the voltage regulator is in the standby mode to pre-charge the compensation capacitor, and to electrically connect the compensation capacitor to the high-impedance node of the active regulator when the voltage regulator is in the active mode.