{"title":"一种无电容快速响应低差稳压器","authors":"Wing Shan Tam , Yee Wei Law , Chi Wah Kok","doi":"10.1016/j.ssel.2022.12.001","DOIUrl":null,"url":null,"abstract":"<div><p>An off-chip capacitor-free low-dropout (LDO) regulator using an improved frequency compensation scheme is proposed. The proposed LDO regulator employs a class-AB error amplifier and a load-current tracker. Outstanding line regulation, load regulation and transient response are achieved. SPICE simulation based on SMIC 0.35 µm CMOS technology shows that the proposed LDO regulator has a low frequency gain over 100 dB and a unity-gain bandwidth in the MHz range. In terms of transient response, the 1% settling time is shorter than 0.2 µs.</p></div>","PeriodicalId":101175,"journal":{"name":"Solid State Electronics Letters","volume":"4 ","pages":"Pages 10-14"},"PeriodicalIF":0.0000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589208822000084/pdfft?md5=9863b4c3bdff545e62d60e448f8c092e&pid=1-s2.0-S2589208822000084-main.pdf","citationCount":"0","resultStr":"{\"title\":\"A capacitor-free fast-response low-dropout voltage regulator\",\"authors\":\"Wing Shan Tam , Yee Wei Law , Chi Wah Kok\",\"doi\":\"10.1016/j.ssel.2022.12.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>An off-chip capacitor-free low-dropout (LDO) regulator using an improved frequency compensation scheme is proposed. The proposed LDO regulator employs a class-AB error amplifier and a load-current tracker. Outstanding line regulation, load regulation and transient response are achieved. SPICE simulation based on SMIC 0.35 µm CMOS technology shows that the proposed LDO regulator has a low frequency gain over 100 dB and a unity-gain bandwidth in the MHz range. In terms of transient response, the 1% settling time is shorter than 0.2 µs.</p></div>\",\"PeriodicalId\":101175,\"journal\":{\"name\":\"Solid State Electronics Letters\",\"volume\":\"4 \",\"pages\":\"Pages 10-14\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2589208822000084/pdfft?md5=9863b4c3bdff545e62d60e448f8c092e&pid=1-s2.0-S2589208822000084-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solid State Electronics Letters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2589208822000084\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Electronics Letters","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589208822000084","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A capacitor-free fast-response low-dropout voltage regulator
An off-chip capacitor-free low-dropout (LDO) regulator using an improved frequency compensation scheme is proposed. The proposed LDO regulator employs a class-AB error amplifier and a load-current tracker. Outstanding line regulation, load regulation and transient response are achieved. SPICE simulation based on SMIC 0.35 µm CMOS technology shows that the proposed LDO regulator has a low frequency gain over 100 dB and a unity-gain bandwidth in the MHz range. In terms of transient response, the 1% settling time is shorter than 0.2 µs.
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