DocumentCode
3402638
Title
Frequency compensation techniques for op-amps and LDOs: A tutorial overview
Author
Garimella, Annajirao ; Furth, Paul M.
Author_Institution
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA
fYear
2011
fDate
7-10 Aug. 2011
Firstpage
1
Lastpage
4
Abstract
Today´s op-amp is not just a stand-alone IC, rather it is more custom and complex, catering the needs of highly integrated SoC. Tighter line and load regulation, low quiescent current operation, capacitor-free and wide-range output capacitor specifications are some of the contradicting requirements in an LDO, which drive newer topologies and newer frequency compensation techniques. The objective of this paper is to provide a tutorial treatment of some of the basics and recent advances in frequency compensation. Transistor level implementation of efficient LHP zero techniques and design examples are detailed.
Keywords
operational amplifiers; voltage regulators; LDO; efficient LHP zero techniques; frequency compensation techniques; op-amps; transistor level implementation;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems (MWSCAS), 2011 IEEE 54th International Midwest Symposium on
Conference_Location
Seoul
ISSN
1548-3746
Print_ISBN
978-1-61284-856-3
Electronic_ISBN
1548-3746
Type
conf
DOI
10.1109/MWSCAS.2011.6026315
Filename
6026315
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