Patent ID: 9665111
Date: 2017-05-30
CPC Classifications: G05F

Claim:
1. A low dropout voltage regulator, comprising: an error amplifier having a plurality of input terminals and an output terminal, a first input terminal of the plurality of input terminals of the error amplifier coupled for receiving a reference voltage; and an output driver having a plurality of input terminals and a plurality of outputs, a first input terminal of the plurality of input terminals of the output driver coupled to the output terminal of the error amplifier, a first output of the plurality of outputs of the output driver coupled to a second input terminal of the plurality of inputs of the error amplifier, a second input terminal of the plurality of input terminals of the output driver coupled for receiving an input signal, wherein the output driver comprises: a first current mirror having a first input and first and second outputs; a current control circuit having first and second inputs and first and second conduction terminals, the first input of the current control circuit serving as the first input of the output driver and the first conduction terminal coupled to the first output of the first current mirror; and a quiescent current regulation amplifier having first and second inputs and an output, the first input of the quiescent current regulation amplifier coupled to the first input of the first current mirror, the second input of the quiescent current regulation amplifier coupled to the second output of the first current mirror, and the output of the quiescent current regulation amplifier coupled to a second input of the current control circuit.