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Design of a 4.5-V, 450-mA low-dropout voltage linear regulator based on a cascoded OTA

Author
Martinez, H.; Grau, A.; Bolea, Y.
Type of activity
Presentation of work at congresses
Name of edition
39th Annual Conference of the IEEE Industrial Electronics Society
Date of publication
2013
Presentation's date
2013-11-13
Book of congress proceedings
Proceedings of the IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society
First page
2242
Last page
2247
Abstract
This article aims to present the design of a 4.5-V 450-mA low drop-out (LDO) voltage linear regulator based on a two-stage cascoded operational transconductance amplifier (OTA) as error amplifier. The aforementioned two-stage OTA is designed with cascoded current mirroring technique to boost up the output impedance. The proposed OTA has a DC gain of 101 dB under no load condition. The designed reference voltage included in the LDO regulator is provided by a band gap reference with the temperatur...
Keywords
Low dropout voltage linear regulator
Group of research
EPIC - Energy Processing and Integrated Circuits
PERC-UPC - Power Electronics Research Centre
VIS - Artificial Vision and Intelligent Systems

Participants