Work

A Highly Power- and Area-Efficient PMU for Cell-Size Autonomous Microsystems

Year: 2024

Type: article

Abstract: Power Management Units (PMU) are present in most electronic devices today. However, for power and area constrained applications, their design becomes a real challenge, especially when cell-sized autonomous microsystems are targeted. This paper presents an LDO regulator and a voltage reference, which are usually a must in any PMU, for autonomous microsystems fabricated in 65 nm CMOS technology. This PMU has been designed to minimize quiescent power and area, consuming a minimum power of 15.6 nW and occupying only$391~\mu m^{2}$, while being able to deliver up to$40~\mu A$to the load. No significant degradation was observed, as the measured line regulation is 0.173%/V, the temperature coefficient is 128.4 ppm/°C over a very wide temperature range going from 0 °C up to 120 °C, and the PSR at low frequencies is −67.1 dB.

Source: IEEE Transactions on Circuits and Systems I Regular Papers

DOI: 10.1109/tcsi.2024.3484537

Authors: Javier de Mena Pacheco, Juan M. Carrillo, Tomas Palacios, Marisa Lopez-Vallejo

Institutions: Universidad Politécnica de Madrid, Universidad de Extremadura, Massachusetts Institute of Technology

Language: English

Topic: Analog and Mixed-Signal Circuit Design

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $2,495