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A 0.6 V(IN) 100 mV Dropout Capacitor-Less LDO with 220 nA I(Q) for Energy Harvesting System
A fully integrated and high-efficiency low-dropout regulator (LDO) with 100 mV dropout voltage and nA-level quiescent current for energy harvesting has been proposed and simulated in the 180 nm CMOS process in this paper. A bulk modulation without an extra amplifier is proposed, which decreases the...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10222239/ https://www.ncbi.nlm.nih.gov/pubmed/37241622 http://dx.doi.org/10.3390/mi14050998 |
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author | Zhang, Yuting Ge, Qianhui Zeng, Yanhan |
author_facet | Zhang, Yuting Ge, Qianhui Zeng, Yanhan |
author_sort | Zhang, Yuting |
collection | PubMed |
description | A fully integrated and high-efficiency low-dropout regulator (LDO) with 100 mV dropout voltage and nA-level quiescent current for energy harvesting has been proposed and simulated in the 180 nm CMOS process in this paper. A bulk modulation without an extra amplifier is proposed, which decreases the threshold voltage, lowering the dropout voltage and supply voltage to 100 mV and 0.6 V, respectively. To ensure stability and realize low current consumption, adaptive power transistors are proposed to enable system tropology to alter between 2-stage and 3-stage. In addition, an adaptive bias with bounds is utilized in an attempt to improve the transient response. Simulation results demonstrate that the quiescent current is as low as 220 nA and the current efficiency reaches 99.958% in the full load condition, load regulation is 0.0059 mV/mA, line regulation is 0.4879 mV/V, and the optimal PSR is −51 dB. |
format | Online Article Text |
id | pubmed-10222239 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-102222392023-05-28 A 0.6 V(IN) 100 mV Dropout Capacitor-Less LDO with 220 nA I(Q) for Energy Harvesting System Zhang, Yuting Ge, Qianhui Zeng, Yanhan Micromachines (Basel) Article A fully integrated and high-efficiency low-dropout regulator (LDO) with 100 mV dropout voltage and nA-level quiescent current for energy harvesting has been proposed and simulated in the 180 nm CMOS process in this paper. A bulk modulation without an extra amplifier is proposed, which decreases the threshold voltage, lowering the dropout voltage and supply voltage to 100 mV and 0.6 V, respectively. To ensure stability and realize low current consumption, adaptive power transistors are proposed to enable system tropology to alter between 2-stage and 3-stage. In addition, an adaptive bias with bounds is utilized in an attempt to improve the transient response. Simulation results demonstrate that the quiescent current is as low as 220 nA and the current efficiency reaches 99.958% in the full load condition, load regulation is 0.0059 mV/mA, line regulation is 0.4879 mV/V, and the optimal PSR is −51 dB. MDPI 2023-05-03 /pmc/articles/PMC10222239/ /pubmed/37241622 http://dx.doi.org/10.3390/mi14050998 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Yuting Ge, Qianhui Zeng, Yanhan A 0.6 V(IN) 100 mV Dropout Capacitor-Less LDO with 220 nA I(Q) for Energy Harvesting System |
title | A 0.6 V(IN) 100 mV Dropout Capacitor-Less LDO with 220 nA I(Q) for Energy Harvesting System |
title_full | A 0.6 V(IN) 100 mV Dropout Capacitor-Less LDO with 220 nA I(Q) for Energy Harvesting System |
title_fullStr | A 0.6 V(IN) 100 mV Dropout Capacitor-Less LDO with 220 nA I(Q) for Energy Harvesting System |
title_full_unstemmed | A 0.6 V(IN) 100 mV Dropout Capacitor-Less LDO with 220 nA I(Q) for Energy Harvesting System |
title_short | A 0.6 V(IN) 100 mV Dropout Capacitor-Less LDO with 220 nA I(Q) for Energy Harvesting System |
title_sort | 0.6 v(in) 100 mv dropout capacitor-less ldo with 220 na i(q) for energy harvesting system |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10222239/ https://www.ncbi.nlm.nih.gov/pubmed/37241622 http://dx.doi.org/10.3390/mi14050998 |
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