A Hybrid-Mode LDO Regulator with Fast Transient Response Performance for IoT applications

Q3 Engineering

WSEAS Transactions on Power Systems Pub Date : 2021-11-18 DOI:10.37394/232016.2021.16.27

Said EL Mouzouade, Karim El khadiri, Z. Lakhliai, D. Chenouni, A. Tahiri

引用次数: 3

Abstract

A hybrid-mode low-drop out (LDO) voltage regulator with fast transient response performance for IoT applications is proposed in this paper. The proposed LDO regulator consist of two sections. First section is an analog regulator which includes a folded cascode operational amplifier to achieve good PSRR. Second section is current DAC and detectors whitch includes a cource current DAC, sink current DAC, undershoot detectors, and overshoot detectors. The current DAC and detectors are designed to obtain a low drop out and fast transient response. The proposed hybrid-mode LDO voltage regulator has been designed, simulated and layouted in Cadence using TSMC 90 nm CMOS technology. The input range of the LDO regulator is 1.2–2.0 V, and it can produces an output voltage of 1.2V. The LDO regulator achieves 58uA quiescent current, -69 PSRR @ 1 KHz noise frequency and an output voltage drop of around 60mV for a load current step of 100 mA. The final design occupies approximately 0.09 mm2.

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物联网应用中具有快速瞬态响应性能的混合模式LDO稳压器

提出了一种用于物联网应用的具有快速瞬态响应性能的混合模式低降差(LDO)稳压器。拟议的LDO监管机构由两个部分组成。第一部分是模拟调节器，其中包括一个折叠级联运算放大器，以实现良好的PSRR。第二部分是电流DAC和检测器，包括源电流DAC、吸收电流DAC、过冲检测器和过冲检测器。目前的DAC和检测器的设计是为了获得低差和快速的瞬态响应。采用台积电90nm CMOS技术，在Cadence上设计、仿真并实现了混合模式LDO稳压器。LDO稳压器的输入范围为1.2-2.0 V，它可以产生1.2V的输出电压。LDO稳压器在负载电流步长为100 mA时实现58uA静态电流，-69 PSRR @ 1 KHz噪声频率和约60mV的输出压降。最终设计占地约0.09平方毫米。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

WSEAS Transactions on Power Systems Engineering-Industrial and Manufacturing Engineering

CiteScore

1.10

自引率

0.00%

发文量

期刊介绍： WSEAS Transactions on Power Systems publishes original research papers relating to electric power and energy. We aim to bring important work to a wide international audience and therefore only publish papers of exceptional scientific value that advance our understanding of these particular areas. The research presented must transcend the limits of case studies, while both experimental and theoretical studies are accepted. It is a multi-disciplinary journal and therefore its content mirrors the diverse interests and approaches of scholars involved with generation, transmission & distribution planning, alternative energy systems, power market, switching and related areas. We also welcome scholarly contributions from officials with government agencies, international agencies, and non-governmental organizations.