Replica-Based Low Drop-Out Voltage Regulator with Assistant Power Transistors for Digital VLSI Systems

Nan, Yang; Zhan, Chenchang; Wang, Guanhua; He, Linjun; Li, Han

10.1109/ISVLSI.2018.00012

2018

21593477

2159-3477

978-1-5386-7100-9

2018 IEEE COMPUTER SOCIETY ANNUAL SYMPOSIUM ON VLSI (ISVLSI)

2018-July

6-9

8-11 July 2018

Hong Kong, Hong kong

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

An advanced replica-based low drop-out (LDO) voltage regulator with assistant power transistors and bulk modulation digital VLSI systems is proposed in this paper. It utilizes seven current comparators with different aspect sizes to control seven assistant power transistors to compensate for the load current. As a result, the load regulation of the replica LDO is significantly improved, while the wide-load-range-stability which is critical for digital systems is not compromised. The proposed LDO is designed in a standard 0.18-pm CMOS process. Extensive simulation results show that, with a power supply of 1.2 V and output voltage of 1.0 V, the proposed LDO has a dropout voltage of 200mV when delivering 1 similar to 100mA to the load. The load regulation is 0.148mV/mA, and the supported load capacitance range is from 0 to 100nF.

low drop-out (LDO) voltage regulator assistant power transistor load regulation current comparator current sense bulk modulation

第一 ; 通讯

英语

CPCI-S ; EI

SZSTI[JCYJ20160530191008447]

Computer Science ; Engineering

Computer Science, Hardware & Architecture ; Computer Science, Theory & Methods ; Engineering, Electrical & Electronic

WOS:000443443500002

20183505744368

Comparator circuits ; Comparators (optical) ; Drops ; Modulation ; Power transistors ; VLSI circuits ; Voltage regulators

Electricity: Basic Concepts and Phenomena:701.1 ; Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers:713.5 ; Semiconductor Devices and Integrated Circuits:714.2 ; Control Equipment:732.1 ; Optical Devices and Systems:741.3

Web of Science

Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China

Nan, Yang,Zhan, Chenchang,Wang, Guanhua,et al. Replica-Based Low Drop-Out Voltage Regulator with Assistant Power Transistors for Digital VLSI Systems[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2018:6-9.