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A 53-µA-Quiescent 400-mA Load Demultiplexer Based CMOS Multi-Voltage Domain Low Dropout Regulator for RF Energy Harvester.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Poongan, Balamahesn 
Rajendran, Jagadheswaran  ORCID logo  https://orcid.org/0000-0003-0313-8462
Mariappan, Selvakumar  ORCID logo  https://orcid.org/0000-0002-9659-6894
Parameswaran, Pharveen 

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 µA 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 mm2 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 µW in standby mode, making it suitable for integrating with an RF energy harvester chip to power sensor nodes.

Description

Keywords

bandgap voltage reference, demultiplexer, feedback network, internet of things, multi-voltage domain low dropout, power management unit, radio frequency energy harvester, system on chip

Journal Title

Micromachines (Basel)

Conference Name

Journal ISSN

2072-666X
2072-666X

Volume Title

14

Publisher

MDPI AG
Sponsorship
Malaysian Ministry of Higher Education (FRGS/1/2019/TK04/USM/02/14)