Patent ID: 7683592

Claim:
A voltage regulator circuit, comprising: an input; an output; an error amplifier to receive a reference voltage and a first feedback voltage and to output an error signal, a transistor coupled between the input and the output to receive the error signal, the error amplifier coupled to the transistor; a boost circuit coupled to the transistor, the boost circuit including a boost transistor and a comparator, wherein the boost transistor is coupled between the input and the output, wherein the comparator is coupled to the boost transistor and to receive the reference voltage and a second feedback voltage, wherein the boost transistor is turned on to pass current from the input to the output when the reference voltage is higher than the second feedback voltage; and a resistor network coupled in series between the output and a ground, the resistor network comprising a first resistor, a second resistor, and a third resistor, wherein the first feedback voltage is tapped between the first resistor and the second resistor, wherein the second feedback voltage is tapped between the second resistor and the third resistor.