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Low‐dropout regulator with dual cross‐coupled current mirrors
Author(s) -
Woo Yuet Ho,
Leung Ka Nang,
Zheng Yanqi,
Guo Jianping
Publication year - 2019
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2697
Subject(s) - low dropout regulator , current mirror , bandwidth (computing) , regulator , biasing , physics , dropout (neural networks) , loop gain , cmos , control theory (sociology) , dual (grammatical number) , amplifier , dropout voltage , voltage regulator , computer science , voltage , transistor , optoelectronics , telecommunications , biochemistry , chemistry , control (management) , quantum mechanics , machine learning , artificial intelligence , gene , art , literature
Summary A low‐dropout regulator (LDO) based on dual cross‐coupled current mirrors is reported in this paper. The proposed dual cross‐coupled current mirrors boost output signal current such that the loop gain of LDO is significantly enhanced, and the error amplifier in LDO retains single‐pole property within the loop bandwidth of LDO. Designed in a 65‐nm CMOS process and operating at a minimum of 1‐V supply, the proposed LDO provides a 0.8‐V output and delivers a maximum of 50 mA. The figure‐of‐merit of the proposed LDO is 8.9 ps.