A 600-mA Multifeedback Loop Capacitorless Low-Dropout Regulator With a-40-dB Power Supply Rejection at 1 MHz With 27.5-μA Quiescent Current Consumption

被引：0

作者：

Jeon, Young-Jun ^{[1
]}

Jeong, Hyun-Woo ^{[1
]}

Park, Hyeonho ^{[1
]}

Shin, Jeeyoung ^{[2
]}

Jeong, Junwon ^{[3
]}

Choi, Woong ^{[3
]}

Hong, Sung-Wan ^{[1
]}

机构：

[1] Sogang Univ, Dept Elect Engn, Seoul 04107, South Korea

[2] Sookmyung Womens Univ, Dept Mech Engn, Seoul 04310, South Korea

[3] Sookmyung Womens Univ, Dept Elect Engn, Seoul 04310, South Korea

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2024年 / 39卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

Capacitorless low-dropout regulator (LDO); fast transient response; high-power-supply-rejection (PSR) ratio; multiple feedback loops;

D O I：

10.1109/TPEL.2024.3420777

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 letter proposes an n-type output capacitorless low-dropout regulator (LDO) with high power supply rejection (PSR) and fast transient response. To enhance both the performances, a multiple-feedback loop structure is proposed. The LDO obtained a PSR of -40 dB (-25 dB) at 1 MHz with load currents of 100 mA (600 mA). The LDO achieved an undershoot of 116 mV when the load changes from 1 to 600 mA, while consuming a quiescent current of 27.5 mu A. The chip was fabricated in the 180-nm CMOS process with an area of 0.063 mm(2).

引用

页码：11969 / 11973

页数：5

共 2 条

[1] An Output-Capacitor-Free Cascode Low-Dropout Regulator with Low Quiescent Current and High Power Supply Rejection
Zhan, Chenchang
Ki, Wing-Hung
[J]. PROCEEDINGS OF THE 2010 IEEE ASIA PACIFIC CONFERENCE ON CIRCUIT AND SYSTEM (APCCAS), 2010, : 472 - 475
[2] A 5.6 μ A Wide Bandwidth, High Power Supply Rejection Linear Low-Dropout Regulator With 68 dB of PSR Up To 2 MHz
Joshi, Kishan
Manandhar, Sanjeev
Bakkaloglu, Bertan
[J]. IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2020, 55 (08) : 2151 - 2160

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