Patent ID: 9293992
Filing Date: 2016-03-22
CPC Classification: G05F,H02M

Claim Text:
1. A voltage regulator circuit comprising: an amplifier having an inverting input and a non-inverting input, the amplifier being configured to generate a control signal based on a reference signal at the inverting input of the amplifier and a feedback signal at the non-inverting input of the amplifier; an output node; a first power node; a second power node; a driver configured to generate a driving current flowing toward the output node in response to the control signal, the driver being coupled between the first power node and the output node; a first transistor having a gate, the first transistor being coupled between the output node and the second power node; and a bias circuit outside the amplifier configured to supply a bias signal to the gate of the first transistor, the first transistor being configured to operate in a saturation mode based on the bias signal supplied by the bias circuit.