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Design considerations for low-voltage on-board DC/DC modules for next generations of data processing circuits

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3 Author(s)
M. T. Zhang ; Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA ; M. M. Jovanovic ; F. C. Lee

By reducing the power supply voltage, a higher speed, lower power consumption, and higher integration density of data processing ICs can be achieved. A variety of ICs operating from 3.3 V are available. Next generations of ICs are expected to work even with lower voltages, i.e., in the 1-3 V range, to further enhance their speed-power performance. At the same time, during transients these new generations of data ICs will present very dynamic loads with high current slew rates. As a result, they will require point-of-load power supplies in order to minimize the effects of the interconnection parasitics. These on-board power supplies will be derived from the existing voltages available in the system (usually 5 V or 12 V), and will be required to have high power densities, high efficiencies, and good transient performance. This paper presents design considerations for these on-board power supplies and discusses their performance limits imposed by various circuit and system parasitics

Published in:

Power Electronics and Drive Systems, 1995., Proceedings of 1995 International Conference on

Date of Conference:

21-24 Feb 1995