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Author Fan Yang ♦ Mok, P.K.T.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2015
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword fine-grained ♦ Digital LDO ♦ load regulation enhancement ♦ fast transient response ♦ soft multi-step switching ♦ adaptive timing ♦ asynchronous
Abstract A digital low drop-out regulator (DLDO) load regulation enhancement technique which includes soft multi-step switching and adaptive timing is presented in this paper. As multi-step switching is widely used to balance the speed and resolution, a power-efficient method to improve the poor resolution during the switching between coarse- and finegrained regulations is in demand. The proposed technique, especially targeting at eliminating the undesired ripple voltage during multi-step switching, is implemented in a 65-nm asynchronous DLDO. This DLDO operates at an input voltage of 0.6V to 1V, and delivers a maximum of 500mA current with a 50mV drop-out voltage. In addition to responding to a nanoseconds' 500mA load current step and a 50mV per 10ns reference voltage change, an enhanced load regulation of 0.15mV/mA is achieved by adopting the proposed techniques.
Description Author affiliation: Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China (Fan Yang; Mok, P.K.T.)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2015-09-28
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781479986828
Size (in Bytes) 1.34 MB
Page Count 4
Starting Page 1
Ending Page 4

Source: IEEE Xplore Digital Library