Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/103455
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dc.contributor.authorTan, Xiao Liangen
dc.contributor.authorChong, Sau Siongen
dc.contributor.authorChan, Pak Kwongen
dc.contributor.authorDasgupta, Udayen
dc.date.accessioned2014-12-22T01:54:26Zen
dc.date.accessioned2019-12-06T21:13:04Z-
dc.date.available2014-12-22T01:54:26Zen
dc.date.available2019-12-06T21:13:04Z-
dc.date.copyright2014en
dc.date.issued2014en
dc.identifier.citationTan, X. L., Chong, S. S., Chan, P. K., & Dasgupta, U. (2014). A LDO regulator with weighted current feedback technique for 0.47nF-10nF capacitive load. IEEE journal of solid-state circuits, 49(11), 2658-2672.en
dc.identifier.issn0018-9200en
dc.identifier.urihttps://hdl.handle.net/10356/103455-
dc.identifier.urihttp://hdl.handle.net/10220/24500en
dc.description.abstractA Weighted Current Feedback (WCF) technique for output capacitorless low-dropout (OCL-LDO) regulator is presented in this paper. Through feedback of a weighted current, the WCF permits smart management of the output impedance as well as the gain from the inter-gain stage. Based on the Routh-Hurwitz stability criterion, the WCF can avoid the right-half plane (RHP) pole and push the left-half plane (LHP) non-dominant complex pole pair to a higher frequency. Besides, it provides good regulator loop gain and fast transient response. Validated by UMC 65 nm CMOS process, the simulation and measurement results have shown that the WCF LDO regulator can operate at a load capacitance (CL) range from 470 pF to 10 nF with only 3.8 pF compensation capacitor. At a supply of 0.75 V and a quiescent current of 15.9 μA, the proposed circuit can support a maximum load current (IL) of 50 mA. When IL switches from 0 to 50 mA in 100 ns, the output can settle within 400 ns for the whole CL range. For a case of single capacitor (CL 470 pF), the settling time is only 250 ns. The comparison results have shown that the WCF LDO regulator offers a comparable or better transient figure-of-merit (FOM) and additional merit to drive wide load capacitance range.en
dc.format.extent35 p.en
dc.language.isoenen
dc.relation.ispartofseriesIEEE journal of solid-state circuitsen
dc.rights© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [Article DOI: http://dx.doi.org/10.1109/JSSC.2014.2346762].en
dc.subjectDRNTU::Engineering::Electrical and electronic engineering::Integrated circuitsen
dc.titleA LDO regulator with weighted current feedback technique for 0.47nF-10nF capacitive loaden
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.identifier.doihttp://dx.doi.org/10.1109/JSSC.2014.2346762en
dc.description.versionAccepted versionen
item.grantfulltextopen-
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