An on-chip 96.5% current efficiency CMOS linear regulator using a flexible control technique of output current

Author

Endoh, Tetsuo ; Sunaga, Kazuhisa ; Sakuraba, Hiroshi ; Masuoka, Fujio

Author_Institution

Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan

Volume

36

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

34

Lastpage

39

Abstract

This paper proposes an on-chip 96.5% current efficiency CMOS linear regulator using a flexible control technique of output current (FCOC). By the use of the FCOC technique, the proposed circuit realizes flexible output current drive according to the load current variation. Therefore, the proposed linear regulator ran supply stable output voltage using the FCOC technique. The linear regulator is fabricated by double-metal 1.2-μm CMOS technology. The number of transistors is 46 and the die size is 0.423 mm². The fabricated linear regulator achieves a fluctuation of output voltage less than 6.81 mV_p-p at a frequency of output current f(I_out) ranging from 1.8 Hz to 100 MHz. Moreover, the fabricated on-chip CMOS linear regulator can achieve 96.5% current efficiency

Keywords

CMOS integrated circuits; driver circuits; integrated circuit design; large scale integration; low-power electronics; voltage regulators; 1.2 micron; 1.8 Hz to 100 MHz; 96.5 percent; CMOS linear regulator; FCOC technique; current efficiency; die size; double-metal CMOS technology; flexible control technique; load current variation; output current; output voltage; CMOS technology; Circuit simulation; DC-DC power converters; Driver circuits; Flexible printed circuits; Frequency; Pulse width modulation; Pulse width modulation converters; Regulators; Voltage fluctuations;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.896226

Filename

896226