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High Efficiency 5A Synchronous DC-DC Buck Converter
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 Title & Authors
High Efficiency 5A Synchronous DC-DC Buck Converter
Hwang, In Hwan; Lee, In Soo; Kim, Kwang Tae;
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 Abstract
This paper presents high efficiency 5A synchronous DC-DC buck converter. The proposed DC-DC buck converter works from 4.5V to 18V input voltage range, and provides up to 5A of continuous output current and output voltage adjustable down to 0.8V. This chip is packaged MCP(multi-chip package) with control chip, top side P-CH switch, and bottom side N-CH switch. This chip is designed in a 25V high voltage CMOS 0.35um technology. It has a maximum power efficiency of up to 94% and internal 3msec soft start and fixed 500KHz PWM(Pulse Width Modulation) operations. It also includes cycle by cycle current limit function, short and thermal shutdown protection circuit at 150℃. This chip size is 2190um*1130um includes scribe lane 10um.
 Keywords
DC-DC;Buck;Converter;Synchronous;High Efficiency;
 Language
Korean
 Cited by
 References
1.
H.J. Kim, Switching Mode Power Supply, Sungandang Co., Gyunggi, 1993

2.
J.H. Kim and S.H. Jung, “Design and Implementation of the Script-based EMS for Flexible Management of Stand-alone Microgrid,” Journal of Korea Multimedia Society, Vol. 18, No. 10, pp. 1231-1240, 2015. crossref(new window)

3.
R. Mammano, Switching Power Supply Topology: Voltage Mode vs. Current Mode, Texas Instrument Inc., Dallas, TX, Unitrode Design Note DN-62, 1994.

4.
B.C. Choi, Fundamentals of Switching Dc-To-Dc Power Conversions, Young Publishing Co., Kyungnam, 2007.

5.
R. Srinivasan and V. Ranjan P, “Pulse Skipping Modulated Buck Converter-Modeling and Simulation,” Circuit and System, Vol. 1, No. 2, pp. 59-64, 2010 crossref(new window)

6.
R. Modak and M. S. Baghini, "A Generic Analytical Model of Switching Characteristics for Efficiency-Oriented Design and Optimization of CMOS Integrated Buck Converter," IEEE International Conference on Integration Technology, pp. 1-6, 2009.

7.
C.L. Chen, W.J. Lai, T.H. Liu, and K.H. Chen, "Zero Current Detect Technique for Fast Transient Response in Buck DC-DC Converters," Proceeding of IEEE International Symposium on Circuits and Systems, pp. 2214-2217, 2008.

8.
C.J. Hsu and Y.S. Lee, "Current Mode Control Integrated Circuit with High Accuracy Current Sensing Circuit for Buck Converter," Proceeding of IECON(Industrial Electronics Society) , pp. 1924-1929, 2007.

9.
J.J. Chen, F.C. Yang, and C.C. Chen, “A New Monolithic Fast-Response Buck Converter Using Spike-Reduction Current-Sensing Circuits,” IEEE Transactions on Industrial Electronics, Vol. 55, No. 3, pp. 1101-1111, 2008. crossref(new window)

10.
B. Yuan and X. Lai, “On-chip CMOS Current-Sensing Circuit for DC-DC Buck Converter,” Institution of Engineering and Technology, Vol. 45, No. 2, pp. 102-103, 2009.

11.
R. Severns and J. Armijos, MOSPOWER Application Handbook, Siliconix Incorporated, Santa Clara, CA, 1884.

12.
L. F. Casey, J. O. Tenkorang, and M. F. Schlect, “CMOS Drive and Control Circuit for 1-10MHz Power Conversion,” IEEE Transaction on Power Electronics, Vol. 6, No. 4, pp. 749-758, 1991. crossref(new window)