A 10–25MHz, 600mA buck converter using time-based PID compensator with 2µA/MHz quiescent current, 94% peak efficiency, and 1MHz BW

Author

Khan, Qadeer ; Seong Joong Kim ; Talegaonkar, Mrunmay ; Elshazly, Amr ; Rao, Akhila ; Griesert, Nathanael ; Winter, Greg ; McIntyre, William ; Hanumolu, Pavan Kumar

Author_Institution

Oregon State Univ., Corvallis, OR, USA

fYear

2014

fDate

10-13 June 2014

Firstpage

1

Lastpage

2

Abstract

A time-based PID compensator that combines the advantages of both analog and digital controllers is used to implement a high frequency low quiescent current buck converter. Fabricated in 180nm CMOS process, the proposed buck converter operates over a wide range of switching frequencies (10-25MHz) and achieves better than 94% peak efficiency while consuming a quiescent current of only 2μA/MHz.

Keywords

CMOS integrated circuits; DC-DC power convertors; compensation; digital control; three-term control; CMOS process; DC-DC converters; analog controllers; bandwidth 1 MHz; digital controllers; frequency 10 MHz to 25 MHz; high frequency low quiescent current buck converter; size 180 nm; time-based PID compensator; Bandwidth; Current measurement; PD control; Pulse width modulation; Switching frequency; Transient response; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits Digest of Technical Papers, 2014 Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4799-3327-3

Type

conf

DOI

10.1109/VLSIC.2014.6858439

Filename

6858439