Patent ID: 11906996
Assignee: INFINEON TECHNOLOGIES AG
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 15:
16. A voltage regulator comprising: an analog-to-digital converter having an input coupled to an output node of the voltage regulator; a digital filter coupled to an output of the analog-to-digital converter; a drive circuit coupled to an output of the digital filter; a plurality of pass transistors having control nodes coupled to corresponding outputs of the drive circuit, and output nodes coupled to the output node of the voltage regulator; and a continuous-time analog feedback circuit comprising an amplifier having an input coupled to the output node of the voltage regulator, and an output coupled to an over voltage node of the drive circuit, wherein the analog feedback circuit has a non-zero direct current (DC) gain,
wherein a bandwidth of a first control loop comprising the digital filter is less than a bandwidth of a second control loop comprising the analog feedback circuit.