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A Fast Transient Response Capacitor-Less LDO with 123 nA Ultra-Low Quiescent Current

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

This paper presents an output capacitor-less, NMOS regulation FET low-dropout regulator (LDO) with fast load transient response in 55 nm CMOS process. The LDO employs a push-pull error amplifier to achieve high slew rate at low quiescent current and a bidirectional dynamic biasing technique to further improve the load transient response, with barely extra quiescent current. The error amplifier includes a common-gate input stage, whose low input resistance improves stability of the LDO over a wide range of load currents. Due to the low output impedance, NMOS regulation FET is used to improve the transient response. The simulated results show that the LDO with a power supply range from 2.5 to 3.6 V achieves a stable 1.2 V output. When the load current changes in the range of 200 μA-10 mA with a rise time and a fall time of 200 ns, the LDO can settle within 2.7 μs under a quiescent current of 123 nA.

源语言英语
主期刊名2021 IEEE 3rd International Conference on Circuits and Systems, ICCS 2021
出版商Institute of Electrical and Electronics Engineers Inc.
46-50
页数5
ISBN(电子版)9781665412346
DOI
出版状态已出版 - 2021
活动3rd IEEE International Conference on Circuits and Systems, ICCS 2021 - Chengdu, 中国
期限: 30 10月 20212 11月 2021

出版系列

姓名2021 IEEE 3rd International Conference on Circuits and Systems, ICCS 2021

会议

会议3rd IEEE International Conference on Circuits and Systems, ICCS 2021
国家/地区中国
Chengdu
时期30/10/212/11/21

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