A New Monolithic Fast-Response Buck Converter Using Spike-Reduction Current-Sensing Circuits
Jiann-Jong Chen
Fong-Cheng Yang
Chih-Chiang Chen
Nat. Taipei Univ. of Technol., Taipei;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: March 2008
Volume: 55,
Issue: 3
On page(s): 1101-1111
ISSN: 0278-0046
INSPEC Accession Number: 9897229
Digital Object Identifier: 10.1109/TIE.2007.907661
Current Version Published: 2008-03-03
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.
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