A New Monolithic Fast-Response Buck Converter Using Spike-Reduction Current-Sensing Circuits

Author

Chen, Jiann-Jong ; Yang, Fong-Cheng ; Chen, Chih-Chiang

Author_Institution

Nat. Taipei Univ. of Technol., Taipei

Volume

55

Issue

3

fYear

2008

fDate

3/1/2008 12:00:00 AM

Firstpage

1101

Lastpage

1111

Abstract

A new monolithic fast-response buck converter using spike-reduction current-sensing circuits is proposed in this paper. The proposed converters are designed and implemented with TSMC 0.35-mum DPQM CMOS processes. The operation frequency can be up to 1.887 MHz. The response time is only 2 mus and compared with other references. The maximum output current is 750 mA, and the maximum power efficiency can be up to 89.1% at 2.442-W output power. The chip area is only 2.157 mm².

Keywords

CMOS integrated circuits; UHF devices; power convertors; DPQM CMOS processes; TSMC; current 750 mA; efficiency 89.1 percent; frequency 1.887 MHz; monolithic fast-response buck converter; power 2.444 W; size 0.35 mum; spike-reduction current-sensing circuits; time 2 mus; Current-sensing circuit; current sensing circuit; dc–dc converter; dc-dc converter; hysteresis-current-controlled (HCC) techniques; hysteresis-current-controlled techniques; switching-mode power converters; switching-mode power converters (SMPCs);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2007.907661

Filename

4391036