Internally Compensated LDO Regulators for Modern System-on-Chip Design
This book presents a thorough state-of-the-art review for internally compensated Low Dropout Regulators (IC-LDO). It serves as a useful guide for circuit designers. The advantages and disadvantages of each cell proposed are highlighted. The authors d
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ally Compensated LDO Regulators for Modern Systemon-Chip Design
Internally Compensated LDO Regulators for Modern System-on-Chip Design
José María Hinojo Clara Luján Martínez Antonio Torralba •
Internally Compensated LDO Regulators for Modern System-on-Chip Design
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José María Hinojo Electronic Engineering Department Universidad de Sevilla Seville Spain
Antonio Torralba Electronic Engineering Department Universidad de Sevilla Seville Spain
Clara Luján Martínez Electronic Engineering Department Universidad de Sevilla Seville Spain
ISBN 978-3-319-75410-9 ISBN 978-3-319-75411-6 https://doi.org/10.1007/978-3-319-75411-6
(eBook)
Library of Congress Control Number: 2018933014 © Springer International Publishing AG, part of Springer Nature 2018 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Printed on acid-free paper This Springer imprint is published by the registered company Springer International Publishing AG part of Springer Nature The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
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Preface
Linear regulators, and more concretely, low-dropout (LDO) linear regulators, are essential blocks in power management systems, as they are able to generate precise and stable, low-noise, supply voltages, making them the right choice for supplying sensitive blocks in analogue, mixed-signal and radio-frequency circuits. In addition, LDO regulators can be completely integrated with no need of external components, what translates into significant savings in area and cost. Therefore, LDO regulators are attracting the attention from the scientific community, despite their use has some drawbacks. To mention, the maximum theoretical efficiency of LDO regulators is lower than that of switched-capacitor or inductor-based solutions. Even more, using internal compensation, the system’s dominant pole is located at an internal node, and t
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