A Capacitor-less LDO with Nested Miller Compensation and Bulk-Driven Techniques in 90nm CMOS

Ruitong Zhang, Zicheng Liu, Xinghua Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

This paper presents an output-capacitor-less low-dropout regulator (LDO) with nested miller compensation and bulk-driven techniques. The proposed LDO has been fabricated in TSMC 90 nm CMOS technology. The nominal supply voltage of the LDO is 1.8 V and the output voltage is 1.2 V. Bulk-driven technique is used to improve the power supply rejection Ratio (PSRR), which are -64 dB at 100 kHz and -24 dB at 25 GHz. It occupies 160 μm × 85 μm of chip area. Measurement results show the drop-out voltage is 200 mV at the maximum output current of 40 mA.

Original languageEnglish
Title of host publication2021 4th International Conference on Circuits, Systems and Simulation, ICCSS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages51-55
Number of pages5
ISBN (Electronic)9781728167527
DOIs
Publication statusPublished - 26 May 2021
Event4th International Conference on Circuits, Systems and Simulation, ICCSS 2021 - Virtual, Kuala Lumpur, Malaysia
Duration: 26 May 202128 May 2021

Publication series

Name2021 4th International Conference on Circuits, Systems and Simulation, ICCSS 2021

Conference

Conference4th International Conference on Circuits, Systems and Simulation, ICCSS 2021
Country/TerritoryMalaysia
CityVirtual, Kuala Lumpur
Period26/05/2128/05/21

Keywords

  • bulk-driven PMOS
  • low drop-out regulator (LDO)
  • push-pull buffer

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