A 53-mu A-quiescent 400-mA load demultiplexer based CMOS multi-voltage domain low dropout regulator for RF energy harvester

Poongan, Balamahesn and Rajendran, Jagadheswaran and Yizhi, Li and Mariappan, Selvakumar and Parameswaran, Pharveen and Kumar, Narendra and Othman, Masuri and Nathan, Arokia (2023) A 53-mu A-quiescent 400-mA load demultiplexer based CMOS multi-voltage domain low dropout regulator for RF energy harvester. Micromachines, 14 (2). ISSN 2072-666X, DOI https://doi.org/10.3390/mi14020379.

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Abstract

A low-power capacitorless demultiplexer-based multi-voltage domain low-dropout regulator (MVD-LDO) with 180 nm CMOS technology is proposed in this work. The MVD-LDO has a 1.5 V supply voltage headroom and regulates an output from four voltage domains ranging from 0.8 V to 1.4 V, with a high current efficiency of 99.98% with quiescent current of 53 mu A with the aid of an integrated low-power demultiplexer controller which consumes only 68.85 pW. The fabricated chip has an area of 0.149 mm(2) and can deliver up to 400 mA of current. The MVD-LDO's line and load regulations are 1.85 mV/V and 0.0003 mV/mA for the low-output voltage domain and 3.53 mV/V and 0.079 mV/mA for the high-output voltage domain. The LDO consumes only 174.5 mu W in standby mode, making it suitable for integrating with an RF energy harvester chip to power sensor nodes.

Item Type: Article
Funders: Malaysian Ministry of Higher Education's Fundamental Research Grant Scheme (FRGS/1/2019/TK04/USM/02/14), CREST Malaysia (PCEDEC/6050415)
Uncontrolled Keywords: Multi-voltage domain low dropout; Radio frequency energy harvester; Power management unit; Bandgap voltage reference; System on chip; Internet of things; Feedback network; Demultiplexer
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TP Chemical technology
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 23 Jun 2023 07:23
Last Modified: 12 Jun 2024 01:01
URI: http://eprints.um.edu.my/id/eprint/38728

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