An Output-Capacitorless Adaptively Biased Low-Dropout Regulator With Maximum 132-MHz UGF and Without Minimum Loading Requirement

被引：0

作者：

Huang, Siji ^{[1
]}

Li, Yicheng ^{[1
]}

Mo, Bing ^{[1
,2
]}

Guo, Jianping ^{[1
,2
]}

Chen, Dihu ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou, Guangdong, Peoples R China

[2] Quanzhou Silicon Elect Technol Co Ltd, Quanzhou, Peoples R China

来源：

2018 31ST IEEE INTERNATIONAL SYSTEM-ON-CHIP CONFERENCE (SOCC) | 2018年

关键词：

Adaptive bias; capacitorless; low dropout regulator; nested Miller compensation; Q-factor reduction; DESIGN; MHZ;

D O I：

暂无

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 an output-capacitorless adaptively biased (AB) low-dropout regulator (LDO) with stable behavior in 0-25 mA load range. The enhanced multipath nested Miller compensation (EMNMC) with embedded feedforward path and &reduction compensation technique are proposed, to achieve high loop gain and wide bandwidth. A symmetrically matched current-voltage mirror (SMCVM) is applied to implement the AB scheme, enabling accurate load current sensing and robust operation of the LDO during full load range. The proposed LDO has been designed in a 0.13-mu m CMOS technology. Simulation results verify that the proposed LDO works stably under 0 similar to 25 mA loading current and 0 similar to 50 pF loading capacitance. It has a maximum current efficiency of 99.17% and a maximum unity-gain frequency (UGF) of 132 MHz. The extension of UGF also magnificently contributes to improvement of power-supply rejection (PSR).

引用

页码：61 / 66

页数：6

共 28 条

[21] A Quiescent 407-nA Output-Capacitorless Low-Dropout Regulator With 0-100-mA Load Current Range
Jiang, Yushan
Wang, Dong
Chan, Pak Kwong
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, 2019, 27 (05) : 1093 - 1104
[22] A 200-ps-Response-Time Output-Capacitorless Low-Dropout Regulator With Unity-Gain Bandwidth >100 MHz in 130-nm CMOS
Bu, Shi
Guo, Jianping
Leung, Ka Nang
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2018, 33 (04) : 3232 - 3246
[23] An Output-Capacitor-Free Adaptively Biased Low-Dropout Regulator With Subthreshold Undershoot-Reduction for SoC
Zhan, Chenchang
Ki, Wing-Hung
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2012, 59 (05) : 1119 - 1131
[24] Transient Response Enhancement on the Output-Capacitorless Low-Dropout Regulator Using the Multipath Nested Miller Compensation with a Transient Quiescent Current Booster
Wu, Chun-Hsun
Chang-Chien, Le-Ren
IEICE TRANSACTIONS ON ELECTRONICS, 2011, E94C (09) : 1464 - 1471
[25] A 0.5 V Inverter-Based Analog Output-Capacitorless Low-Dropout Regulator with Bulk-Driven Transient-Enhancing Paths
Lee, Jinhen
Chan, Pak Kwong
2022 11TH INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS (ICCCAS 2022), 2022, : 44 - 49
[26] A Low-Power Wide-Load-Range Output-Capacitorless Low-Dropout Voltage Regulator With Indirect-Direct Nested Miller Compensation
Limpisawas, Tanachai
Wattanapanitch, Woradorn
IEEE ACCESS, 2022, 10 : 67396 - 67412
[27] An Output-Capacitor-Free Adaptively Biased Low-Dropout Regulator With Sub-Threshold Undershoot-Reduction for SoC
Zhan, Chenchang
Ki, Wing-Hung
2011 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), 2011, : 45 - 48
[28] An Adaptively Biased Output-Capacitor-Free Low-Dropout Regulator With Supply Ripple Subtraction and Pole-Tracking-Compensation
Han, Xu
Wu, Lianbo
Gao, Yuan
Ki, Wing-Hung
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2021, 36 (11) : 12795 - 12804

← 1 2 3 →