A Low-noise Low-Dropout Regulator Using a 28-nm Technology

被引：2

作者：

Wang, Lantao ^{[1
]}

Fassbender, Marc ^{[1
]}

Scholl, Markus ^{[1
]}

Meier, Jonas ^{[1
]}

Wunderlich, Ralf ^{[1
]}

Heinen, Stefan ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Chair Integrated Analog Circuits & RF Syst, Kopernikusstr 16, D-52074 Aachen, Germany

来源：

2020 27TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS (ICECS) | 2020年

关键词：

LDO; low-noise; 28-nm; low-pass filter; power management circuit;

D O I：

10.1109/icecs49266.2020.9294787

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a low-dropout regulator (LDO) with the capability to provide a stable 0.9 V supply voltage for fluctuation-sensitive circuits such as the voltage-controller oscillator in a frequency synthesizer. The LDO uses a low noise architecture that separates two feed-back loops with a low-pass filter with a extremely low 3-dB frequency of 8.15 Hz. The circuit is designed in a 28-nm technology, operating with a 1.8 V external voltage and able to supply maximum current of 25 mA. Analysis and implementation for optimizing power supply rejection ratio (PSRR) of the circuit are also addressed in this paper.

引用

页数：4

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