UM
Partial analogue-assisted digital low dropout regulator with transient body-drive and 2.5x FOM improvement
Huang, Mo; Lu, Yan; Lu, Xing
2018-03-08
Source PublicationELECTRONICS LETTERS
ISSN0013-5194
Volume54Issue:5Pages:282-283
AbstractA partial analogue-assisted (AA) digital low dropout regulator (D-LDO) with also a transient body-drive (BD) technique is proposed. The body of the power switches can be driven by the V-OUT transient spike that is high-pass coupled from the D-LDO output when a load step occurs, for a temporary threshold voltage change. The BD technique thereby manages to provide more than 10% momentary output current. In addition, since the effectiveness of the AA loop is proportional to the ratio of the coupling capacitance and the parasitic capacitance, here, only about 1/5 of the most significant bit of the power switches are connected to the AA and BD networks. Therefore, the coupling capacitors are much reduced, comparing to the previous work. A simulated 100 mV undershoot is obtained under a 2-to-12 mA load step within 1 ns edge time, using only 40 pF total capacitor. A 0.09 ps figure-of-merit (FOM) of speed is thereby achieved, which is at least 2.5x better than state-of-the-art works.
Keywordvoltage regulators power semiconductor switches partial analogue-assisted digital low dropout regulator transient body-drive technique FOM improvement partial AA D-LDO transient BD technique power switches transient spike temporary threshold voltage change momentary output current coupling capacitance parasitic capacitance coupling capacitors total capacitor figure-of-merit voltage 100 mV current 2 mA to 12 mA capacitance 40 pF
DOI10.1049/el.2017.4211
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000426262200016
PublisherINST ENGINEERING TECHNOLOGY-IET
The Source to ArticleWOS
Fulltext Access
Citation statistics
Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Huang, Mo,Lu, Yan,Lu, Xing. Partial analogue-assisted digital low dropout regulator with transient body-drive and 2.5x FOM improvement[J]. ELECTRONICS LETTERS,2018,54(5):282-283.
APA Huang, Mo,Lu, Yan,&Lu, Xing.(2018).Partial analogue-assisted digital low dropout regulator with transient body-drive and 2.5x FOM improvement.ELECTRONICS LETTERS,54(5),282-283.
MLA Huang, Mo,et al."Partial analogue-assisted digital low dropout regulator with transient body-drive and 2.5x FOM improvement".ELECTRONICS LETTERS 54.5(2018):282-283.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Huang, Mo]'s Articles
[Lu, Yan]'s Articles
[Lu, Xing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang, Mo]'s Articles
[Lu, Yan]'s Articles
[Lu, Xing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang, Mo]'s Articles
[Lu, Yan]'s Articles
[Lu, Xing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.