A Variable Multiple-Output DC-DC Buck Converter with Time-Multiplexing

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This paper presents a variable current-controlled single-inductor dual-output DC-DC buck converter depending on difference loading currents in standard 0.18-μm CMOS n-well process. We intend for compensate system and according each loading current to make suitable dual cycle. Two outputs are specified at 1.8V and 1.2V operated at 800 KHz, the power conversion efficiency reaches 82%. The chip occupies 1.73 × 1.1 mm2.

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182-188

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Dongsheng Ma , Wing-Hung Ki , Chi-Ying Tsui , Mok, P.K.T. , Single- inductor multiple-output switching converters with time-multiplexing control in discontinuous conduction mode, IEEE Solid-State Circuits , Vol 38, pp.89-100, Jan (2003).

DOI: 10.1109/jssc.2002.806279

Google Scholar

[2] Yu-Huei Lee; Tzu-Chi Huang; Yao-Yi Yang; Wen-Shen Chou; Ke-Horng Chen; Chen-Chih Huang; Ying-Hsi Lin, Minimized Transient and Steady-State Cross Regulation in 55-nm CMOS Single-Inductor Dual-Output (SIDO) Step-Down DC-DC Converter, IEEE Journal of Solid-State Circuits , Vol 46 , pp.2488-2499, (2011).

DOI: 10.1109/asscc.2010.5716558

Google Scholar

[3] Wei-Hsun Chang , Jia-Hui Wang , Chien-Hung Tsai, A peak-current controlled single-inductor dual-output DC-DC buck converter with a time- multi-plexing scheme, VLSI Design Automation and Test , pp.331-334, 26-29 April (2010).

DOI: 10.1109/vdat.2010.5496756

Google Scholar

[4] Kuo-Hsing Cheng, Chia-Wei Su, Hsin-Hsin Ko, A high-accuracy and high-efficiency on-chip current sensing for current-mode control CMOS DC-DC buck converter, ICECS, p.458 – 461, Aug. 31 2008-Sept. 3 (2008).

DOI: 10.1109/icecs.2008.4674889

Google Scholar

[5] Cheung Fai Lee , Mok, P.K.T., A monolithic current-mode CMOS DC-DC converter with on-chip current-sensing technique, IEEE Solid-State Circuits , Vol 39 , pp.3-14, Jan. (2004).

DOI: 10.1109/jssc.2003.820870

Google Scholar

[6] C. Y. Leung; Mok, P.K.T. and K. N. Leung , An integrated CMOS current-sensing circuit for low-Voltage current-mode buck regulator, Circuits and Systems II: Express Briefs, vol. 52, pp.394-397, (2005).

DOI: 10.1109/tcsii.2005.850403

Google Scholar

[7] Guan-Lin Li; Ying-Chi Chen; Yi-Ting Chang; Chien-Hung Tsai; Huei-Shan Chen, A single-inductor dual-output DC-DC converter with output voltage mode switching, , IEEE 13th Workshop on COMPEL, pp.1-4, 201.

DOI: 10.1109/compel.2012.6251731

Google Scholar