LINEAR VOLTAGE REGULATOR

摘要

A voltage regulator includes an error amplifier, a voltage buffer, a transistor, a frequency compensation circuit, a capacitor, and a resistive network. The error amplifier receives a reference signal and a feedback signal, and generates an intermediate control signal. The voltage buffer receives the intermediate control signal and generates a control signal. The transistor has a gate that receives the control signal, a first terminal that receives a supply voltage signal, and a second terminal that generates a regulated output signal. The frequency compensation circuit is connected to the second terminal of the transistor. The capacitor is connected to the error amplifier and the frequency compensation circuit. The resistive network receives the regulated output signal and generates the feedback signal.

主权项

1. A voltage regulator, comprising:
an error amplifier having a first input terminal for receiving a reference signal, a second input terminal for receiving a feedback signal, and an output terminal for generating an intermediate control signal; a first voltage buffer connected to the output terminal of the error amplifier for receiving the intermediate control signal and generating a control signal; a transistor having a gate terminal connected to the first voltage buffer for receiving the control signal, a first terminal for receiving a supply voltage signal, and a second terminal for generating a regulated output signal; a frequency compensation circuit connected to the second terminal of the transistor; a first capacitor having a first terminal connected to the output terminal of the error amplifier and a second terminal connected to the frequency compensation circuit; and a resistive network connected to the second terminal of the transistor for receiving the regulated output signal and outputting the feedback signal.