Asynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input

This paper presents the asynchronous digital low-dropout regulator (AD-LDO) with dual adjustment mode in ultra-low voltage input. The architecture of the proposed AD-LDO consists of the asynchronous control loop and the power PMOS array. The proposed AD-LDO is controlled by switched bidirectional as...

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Autores principales:	Wei-Bin Yang, Chi-Hsuan Sun, Diptendu Sinha Roy, Yi-Mei Chen
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Asynchronous digital low-dropout regulator asynchronous control loop ultra-low voltage dual adjustment mode wearable electronic devices Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/a23ca686c12e4d8880efe48c43f7a7be
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spelling	oai:doaj.org-article:a23ca686c12e4d8880efe48c43f7a7be2021-12-03T00:00:51ZAsynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input2169-353610.1109/ACCESS.2021.3128948https://doaj.org/article/a23ca686c12e4d8880efe48c43f7a7be2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9618933/https://doaj.org/toc/2169-3536This paper presents the asynchronous digital low-dropout regulator (AD-LDO) with dual adjustment mode in ultra-low voltage input. The architecture of the proposed AD-LDO consists of the asynchronous control loop and the power PMOS array. The proposed AD-LDO is controlled by switched bidirectional asynchronous control loop which can eliminate the clock power consumption of synchronous LDO. The dual adjustment mode can not only provide wider loading current, but also can reduce output voltage ripple. Moreover, the proposed AD-LDO only uses one bidirectional asynchronous control loop for two adjustment modes, so it can save area and reduce power consumption. Under the 350mV input voltage and 300mV output voltage, the proposed AD-LDO can provide 2.4mA output current with 99.8% current efficiency and only consume <inline-formula> <tex-math notation="LaTeX">$5~\mu \text{A}$ </tex-math></inline-formula> quiescent current. Therefore, the proposed LDO is suitable for applications of wearable electronic devices with an ultra-low supply voltage.Wei-Bin YangChi-Hsuan SunDiptendu Sinha RoyYi-Mei ChenIEEEarticleAsynchronous digital low-dropout regulatorasynchronous control loopultra-low voltagedual adjustment modewearable electronic devicesElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 157563-157570 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Asynchronous digital low-dropout regulator asynchronous control loop ultra-low voltage dual adjustment mode wearable electronic devices Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Asynchronous digital low-dropout regulator asynchronous control loop ultra-low voltage dual adjustment mode wearable electronic devices Electrical engineering. Electronics. Nuclear engineering TK1-9971 Wei-Bin Yang Chi-Hsuan Sun Diptendu Sinha Roy Yi-Mei Chen Asynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input
description	This paper presents the asynchronous digital low-dropout regulator (AD-LDO) with dual adjustment mode in ultra-low voltage input. The architecture of the proposed AD-LDO consists of the asynchronous control loop and the power PMOS array. The proposed AD-LDO is controlled by switched bidirectional asynchronous control loop which can eliminate the clock power consumption of synchronous LDO. The dual adjustment mode can not only provide wider loading current, but also can reduce output voltage ripple. Moreover, the proposed AD-LDO only uses one bidirectional asynchronous control loop for two adjustment modes, so it can save area and reduce power consumption. Under the 350mV input voltage and 300mV output voltage, the proposed AD-LDO can provide 2.4mA output current with 99.8% current efficiency and only consume <inline-formula> <tex-math notation="LaTeX">$5~\mu \text{A}$ </tex-math></inline-formula> quiescent current. Therefore, the proposed LDO is suitable for applications of wearable electronic devices with an ultra-low supply voltage.
format	article
author	Wei-Bin Yang Chi-Hsuan Sun Diptendu Sinha Roy Yi-Mei Chen
author_facet	Wei-Bin Yang Chi-Hsuan Sun Diptendu Sinha Roy Yi-Mei Chen
author_sort	Wei-Bin Yang
title	Asynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input
title_short	Asynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input
title_full	Asynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input
title_fullStr	Asynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input
title_full_unstemmed	Asynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input
title_sort	asynchronous digital low-dropout regulator with dual adjustment mode in ultra-low voltage input
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/a23ca686c12e4d8880efe48c43f7a7be
work_keys_str_mv	AT weibinyang asynchronousdigitallowdropoutregulatorwithdualadjustmentmodeinultralowvoltageinput AT chihsuansun asynchronousdigitallowdropoutregulatorwithdualadjustmentmodeinultralowvoltageinput AT diptendusinharoy asynchronousdigitallowdropoutregulatorwithdualadjustmentmodeinultralowvoltageinput AT yimeichen asynchronousdigitallowdropoutregulatorwithdualadjustmentmodeinultralowvoltageinput
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Asynchronous Digital Low-Dropout Regulator With Dual Adjustment Mode in Ultra-Low Voltage Input

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