| CPC G05F 1/575 (2013.01) | 20 Claims |
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1. A voltage regulator configured to output an output voltage, the voltage regulator comprising:
a compensator configured to compare a first feedback voltage corresponding to the output voltage with a reference voltage to output a comparison voltage;
a first current bias connected between a first power source voltage and a first node;
a first transistor connected between the first node and the comparison voltage, wherein a gate of the first transistor is configured to receive a voltage of a second node, and wherein a source of the first transistor is configured to receive the comparison voltage;
a buffer circuit configured to buffer a voltage of the first node to output a gate voltage;
a pass transistor connected between an input voltage and an output node through which the output voltage is output to operate in response to the gate voltage;
a second current bias connected between the first power source voltage and the second node; and
a second transistor connected between the second node and the output node to operate in response to the voltage of the second node.
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