Patent ID: 9590496
Date: 2017-03-07
CPC Classifications: G05F,H02M

Claim:
1. A voltage regulator comprising: a pass unit configured to transfer an input voltage provided from an input node to an output node as an output voltage according to a control signal; a voltage dividing unit configured to divide the output voltage to generate a divided output voltage; an error amplifying unit configured to output a comparison signal based on a result of comparing a magnitude of the divided output voltage with a magnitude of a reference voltage; and a filter unit configured to filter noise included in the outputted comparison signal to generate the control signal, wherein the filtered noise corresponds to noise included in the outputted comparison signal by transferring noise included in the input voltage to the error amplifying unit via the pass unit and the voltage dividing unit, wherein the filter unit comprises a buffer comprising an input terminal and an output terminal outputting the control signal, the input terminal connected to the output terminal.