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Cascoded OTA based low dropout (LDO) voltage regulators

Author
Martinez, H.
Type of activity
Presentation of work at congresses
Name of edition
19th IEEE International Conference on Emerging Technologies and Factory Automation
Date of publication
2014
Presentation's date
2014-09-18
Book of congress proceedings
ETFA 2014: 19th IEEE International Conference on Emerging Technologies and Factory Automation: September 16-19, 2014, Barcelona, Spain
First page
1
Last page
5
DOI
https://doi.org/10.1109/ETFA.2014.7005343 Open in new window
Project funding
Circuitos de gestión de energia adaptativos y miniaturizados para recolectores de energía en redes de sensores inalámbricos (WSN)
URL
http://xplorebcpaz.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=7005343&queryText%3DCascoded+OTA+Based+Low+Dropout+.LB.LDO.RB.+Voltage+Regulator Open in new window
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 temperatu...
Keywords
Low drop-out (LDO) voltage linear regulator, band gap reference, cascoded current mirror., operational transconductance amplifier (OTA)
Group of research
EPIC - Energy Processing and Integrated Circuits
PERC-UPC - Power Electronics Research Centre

Participants