A high power efficiency high power supply rejection LDO with fast-transient response

A high power efficiency high power supply rejection LDO with fast-transient response | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article A high power efficiency high power supply rejection LDO with fast-transient response Kunbo Cao, Yong Xu, Wandi Lu, Wenqi Li, Ziyue Li This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4832987/v1 This work is licensed under a CC BY 4.0 License Status: Under Revision Version 1 posted 8 You are reading this latest preprint version Abstract In this paper, a SMIC 0.18µm BCD process low-dropout regulator (LDO) with high power efficiency, high power supply rejection (PSR) and fast-transient response is proposed for power management modules in RF energy harvesting systems. A buffer and pole-zero tracking structure are added to achieve only one dominate pole in the unit gain bandwidth (UGB). Simulation results show that the maximum power efficiency of LDO achieves 96.1% and it consumes 18µA quiescent current, delivering a load current range from 0-30mA over a 10µF load. The overshoot voltage is 0.14% of output voltage and the recovery time is less than 3.2µs when the load is varied from no-load to full-load, and the PSR is better than − 47dB at 1MHz. low-dropout regulator fast-transient response power supply rejection Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Revision Version 1 posted Editorial decision: Revision requested 21 Dec, 2025 Reviews received at journal 14 Jul, 2025 Reviewers agreed at journal 12 Jun, 2025 Reviewers agreed at journal 08 Feb, 2025 Reviewers invited by journal 07 Feb, 2025 Editor assigned by journal 31 Jul, 2024 Submission checks completed at journal 31 Jul, 2024 First submitted to journal 31 Jul, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4832987","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":340515163,"identity":"358bf0dc-421a-4fc5-8e39-5ce2ab6b0d6a","order_by":0,"name":"Kunbo Cao","email":"","orcid":"","institution":"PLA Army Engineering University","correspondingAuthor":false,"prefix":"","firstName":"Kunbo","middleName":"","lastName":"Cao","suffix":""},{"id":340515164,"identity":"f3c3cb56-a0d4-406e-b1be-0445d72bddc9","order_by":1,"name":"Yong Xu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAyUlEQVRIiWNgGAWjYBADOX72xsaHH0jRYizZc7jZWIIULYkbbqS3CfAQo9TgRgKbxMcdtYkbbj5sY5BgsJPTbSCgRXJGApvkzDPHjWfeTmx7UMCQbGx2gIAWfokENmnetmOyfbcT2w0kGA4kbiOkhQ2qhbHh5sE2CR5itEBtqVGccIORSC2SPQ+YLWe2HQAGciIwkA2I8IvB8QTGGx/b6oBRefzhww8VdnIEtQCd9gUYgYdhJhBUDgbMwGRSR5zSUTAKRsEoGJkAAEu/QukryEqFAAAAAElFTkSuQmCC","orcid":"","institution":"PLA Army Engineering University","correspondingAuthor":true,"prefix":"","firstName":"Yong","middleName":"","lastName":"Xu","suffix":""},{"id":340515165,"identity":"05a64047-4973-4ae0-8fce-dcb6de7873d0","order_by":2,"name":"Wandi Lu","email":"","orcid":"","institution":"PLA Army Engineering University","correspondingAuthor":false,"prefix":"","firstName":"Wandi","middleName":"","lastName":"Lu","suffix":""},{"id":340515166,"identity":"98ed73a4-a64d-4842-b3bb-3f3d1b012174","order_by":3,"name":"Wenqi Li","email":"","orcid":"","institution":"PLA Army Engineering University","correspondingAuthor":false,"prefix":"","firstName":"Wenqi","middleName":"","lastName":"Li","suffix":""},{"id":340515167,"identity":"e9df1386-3dfe-468e-a2dd-7989fd385a44","order_by":4,"name":"Ziyue Li","email":"","orcid":"","institution":"PLA Army Engineering University","correspondingAuthor":false,"prefix":"","firstName":"Ziyue","middleName":"","lastName":"Li","suffix":""}],"badges":[],"createdAt":"2024-07-31 06:49:37","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4832987/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4832987/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":63393655,"identity":"fd5c8fe2-92a4-4ff4-9f82-841be605933d","added_by":"auto","created_at":"2024-08-27 16:22:16","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":433885,"visible":true,"origin":"","legend":"","description":"","filename":"AhighpowerefficiencyhighpowersupplyrejectionLDOwithfasttransientresponse.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4832987/v1_covered_ed824845-7f32-4b36-8479-19356148dfde.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"A high power efficiency high power supply rejection LDO with fast-transient response","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"analog-integrated-circuits-and-signal-processing","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"alog","sideBox":"Learn more about [Analog Integrated Circuits and Signal Processing](http://link.springer.com/journal/10470)","snPcode":"10470","submissionUrl":"https://submission.nature.com/new-submission/10470/3","title":"Analog Integrated Circuits and Signal Processing","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"low-dropout regulator, fast-transient response, power supply rejection","lastPublishedDoi":"10.21203/rs.3.rs-4832987/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4832987/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this paper, a SMIC 0.18\u0026micro;m BCD process low-dropout regulator (LDO) with high power efficiency, high power supply rejection (PSR) and fast-transient response is proposed for power management modules in RF energy harvesting systems. A buffer and pole-zero tracking structure are added to achieve only one dominate pole in the unit gain bandwidth (UGB). Simulation results show that the maximum power efficiency of LDO achieves 96.1% and it consumes 18\u0026micro;A quiescent current, delivering a load current range from 0-30mA over a 10\u0026micro;F load. 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