Voltage regulator
AssigneeGutschsemi Limited
InventorKuo-Wei Chang
Life of this patent
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Abstract
A voltage regulator is provided. The voltage regulator includes a main error amplifier, a first buffer, a second buffer, and multiple main zero compensation loops. The main error amplifier generates a first voltage signal according to a reference voltage signal and a feedback voltage signal. The first buffer provides a second voltage signal according to the first voltage signal. The second buffer provides an output voltage signal according to the second voltage signal. The main zero compensation loops are respectively coupled between an output terminal of the main error amplifier and an output terminal of the first buffer. The main zero compensation loops provide different zero compensations.
Claims14
A voltage regulator, comprising:
- a main error amplifier, configured to generate a first voltage signal according to a reference voltage signal and a feedback voltage signal, and output the first voltage signal through an output terminal of the main error amplifier;
- a first buffer, coupled to the output terminal of the main error amplifier, and configured to receive the first voltage signal, provide a second voltage signal according to the first voltage signal, and output the second voltage signal at an output terminal of the first buffer;
- a second buffer, coupled to the output terminal of the first buffer, and configured to receive the second voltage signal and provide an output voltage signal according to the second voltage signal;
- and
- a plurality of main zero compensation loops, respectively coupled between the output terminal of the main error amplifier and the output terminal of the first buffer, and configured to provide a plurality of zero compensations which are different.
Dependencies are inferred from the claim text.