A 96-nA Quiescent Current LDO With Embedded BGR Using Adaptive Pole Tracking and Adaptive Transconductance Technique

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2024-10-15 DOI:10.1109/TCSII.2024.3481068

Xiangwen Xin;Ping Luo;Hao Wang;Jingwei Huang;Xiaowen Chen;Chang Liu

{"title":"A 96-nA Quiescent Current LDO With Embedded BGR Using Adaptive Pole Tracking and Adaptive Transconductance Technique","authors":"Xiangwen Xin;Ping Luo;Hao Wang;Jingwei Huang;Xiaowen Chen;Chang Liu","doi":"10.1109/TCSII.2024.3481068","DOIUrl":null,"url":null,"abstract":"This brief proposes an ultra-low-power low dropout (LDO) regulator using adaptive pole tracking and adaptive transconductance technique, aimed at further enhancing the efficiency of power management integrated circuits (PMIC). In light current loads, only the folded cascode amplifier is opened to provide excellent output voltage accuracy while reducing power consumption. In heavy current loads, activating the operational transconductance amplifier improves transient performance. An adaptive pole-tracking technique has been applied in the proposed LDO to ensure loop stability. In addition, a low-power bandgap reference was embedded into the proposed LDO, which simplifies the peripheral circuit of LDO in practical application. The proposed ultra-low-power LDO was fabricated in a \n<inline-formula> <tex-math>$0.18~\\mu $ </tex-math></inline-formula>\nm BCD process, with an overshoot and undershoot voltage of 12mV, and ultra-low quiescent current of 96nA.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"72 1","pages":"318-322"},"PeriodicalIF":4.0000,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Circuits and Systems II: Express Briefs","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10716787/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

This brief proposes an ultra-low-power low dropout (LDO) regulator using adaptive pole tracking and adaptive transconductance technique, aimed at further enhancing the efficiency of power management integrated circuits (PMIC). In light current loads, only the folded cascode amplifier is opened to provide excellent output voltage accuracy while reducing power consumption. In heavy current loads, activating the operational transconductance amplifier improves transient performance. An adaptive pole-tracking technique has been applied in the proposed LDO to ensure loop stability. In addition, a low-power bandgap reference was embedded into the proposed LDO, which simplifies the peripheral circuit of LDO in practical application. The proposed ultra-low-power LDO was fabricated in a

$0.18~\mu $

m BCD process, with an overshoot and undershoot voltage of 12mV, and ultra-low quiescent current of 96nA.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.