Patent ID: 11881783
Assignee: QUALCOMM INCORPORATED
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 24:
25. An apparatus for driving a power rail at an electronic device having a plurality of voltage regulators electrically coupled to the power rail, comprising:
means for generating a rail voltage and a rail current to drive the power rail, each respective voltage regulator having an output interface coupled to the power rail and configured to provide the rail voltage and deliver up to a predefined regulator current to the power rail when the respective voltage regulator is in an operational mode;
means for obtaining a control setting for each respective voltage regulator of the plurality of voltage regulators, the control setting for each respective voltage regulator determining whether the respective voltage regulator is a standby voltage regulator operating in a standby mode or is an operational voltage regulator operating in the operational mode;
means for, at each standby voltage regulator, enabling a bypass unit of the standby voltage regulator to bypass a feedback path from the output interface to an input of a voltage regulator controller, such that the standby voltage regulator does not deliver current to the power rail; and
means for, at each operational voltage regulator, disabling the bypass unit from bypassing the feedback path, such that the respective voltage regulator delivers current to the power rail.