A capacitor-free CMOS LDO regulator with AC-boosting and active-feedback frequency compensation

被引：4

作者：

Zhou Qianneng ^{[1
]}

Wang Yongsheng ^{[1
]}

Lai Fengchang ^{[1
]}

机构：

[1] Harbin Inst Technol, Microelect Ctr, Harbin 150001, Heilongjiang, Peoples R China

来源：

JOURNAL OF SEMICONDUCTORS | 2009年 / 30卷 / 04期

关键词：

low-dropout regulator; AC-boosting and active-feedback; frequency compensation; capacitor-free;

D O I：

10.1088/1674-4926/30/4/045006

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A capacitor-free CMOS low-dropout (LDO) regulator for system-on-chip (SoC) applications is presented. By adopting AC-boosting and active-feedback frequency compensation (ACB-AFFC), the proposed LDO regulator, which is independent of an off-chip capacitor, provides high closed-loop stability. Moreover, a slew rate enhancement circuit is adopted to increase the slew rate and decrease the output voltage dips when the load current is suddenly switched from low to high. The LDO regulator is designed and fabricated in a 0.6 mu m CMOS process. The active silicon area is only 770 x 472 mu m(2). Experimental results show that the total error of the output voltage due to line variation is less than +/- 0.197%. The load regulation is only 0.35 mV/mA when the load current changes from 0 to 100 mA.

引用

页数：6

共 49 条

[21] Fast Transient Response Capacitor-Free Linear Voltage Regulator in 65nm CMOS
Jackum, Thomas
Maderbacher, Gerhard
Pribyl, Wolfgang
Riederer, Roman
2011 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), 2011, : 905 - 908
[22] Design of Off-Chip Capacitor-Free CMOS Low-Dropout Voltage Regulator
Liu, Xin
Wang, Shuai
Guo, Shuxu
Chang, Yuchun
2008 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS 2008), VOLS 1-4, 2008, : 1316 - 1319
[23] A Capacitor-Free, Fast Transient Response Linear Voltage Regulator In a 180nm CMOS
Deleuran, Alexander N.
Lindbjerg, Nicklas
Pedersen, Martin K.
Muntal, Pere Llimos
Jorgensen, Ivan H. H.
2015 NORDIC CIRCUITS AND SYSTEMS CONFERENCE (NORCAS) - NORCHIP & INTERNATIONAL SYMPOSIUM ON SYSTEM-ON-CHIP (SOC), 2015,
[24] Low-Power Three-Stage Amplifier Using Active-Feedback Miller Capacitor and Serial RC Frequency Compensation
张庚宇
肖夏
聂凯明
徐江涛
Transactions of Tianjin University, 2015, 21 (06) : 515 - 523
[25] A Low-Power High-PSRR CMOS Voltage Reference with Active-Feedback Frequency Compensation for IoT Applications
Wang, Lidan
Zhan, Chenchang
He, Linjun
Tang, Junyao
Wang, Guanhua
Liu, Yang
Li, Guofeng
2018 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), 2018,
[26] Low-power three-stage amplifier using active-feedback Miller capacitor and serial RC frequency compensation
Zhang G.
Xiao X.
Nie K.
Xu J.
Transactions of Tianjin University, 2015, 21 (06) : 515 - 523
[27] Low-Power Three-Stage Amplifier Using Active-Feedback Miller Capacitor and Serial RC Frequency Compensation
张庚宇
肖夏
聂凯明
徐江涛
Transactions of Tianjin University, 2015, (06) : 515 - 523
[28] Capacitor-Free, Low Drop-Out Linear Regulator in a 180 nm CMOS for Hearing Aids
Yosef-Hay, Yoni
Muntal, Pere Llimos
Larsen, Dennis Oland
Jorgensen, Ivan H. H.
2016 2ND IEEE NORDIC CIRCUITS AND SYSTEMS CONFERENCE (NORCAS), 2016,
[29] Active-feedback frequency compensation for low-power multi-stage amplifiers
Lee, H
Mok, PKT
PROCEEDINGS OF THE IEEE 2002 CUSTOM INTEGRATED CIRCUITS CONFERENCE, 2002, : 325 - 328
[30] Active-feedback frequency-compensation technique for low-power multistage amplifiers
Lee, H
Mok, PKT
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2003, 38 (03) : 511 - 520

← 1 2 3 4 5 →