DC-DC converters have been around since the use of electricity became common practice. Over the years many technological developments have led to a wide variety of different types and applications for DC-DC converters. In the recent years a trend has emerged towards very compact low-power (100 mW–1 W) and low-voltage (1 V–80 V) DC-DC converters, mainly for use in battery-operated applications. The two key specifications for this recent breed of DC-DC converters are power conversion efficiency and power density. DC-DC converters featuring high power conversion efficiency, only requiring a limited number of off-chip (passive) components are considered the established state-of-the art. The next technological step is to integrate the remaining off-chip components of the DC-DC converter on-chip, causing both the required area and the costs to decrease. The technology of choice to achieve this ongoing on-chip integration is CMOS, as it is by far the most widely used and thus potentially the most economical chip technology. This chapter provides some basic considerations and a few historical notes, in Sect. 1.1. Examples of low power applications for DC-DC converters situate the relevance of the work, in Sect. 1.2. The challenges of creating monolithic inductive DC-DC are highlighted in Sect. 1.3. The outline of this book is provided in Sect. 1.4. The conclusions of this chapter are given in Sect. 1.5.


Power Conversion Efficiency CMOS Technology Battery Voltage Buck Converter High Power Conversion Efficiency 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.ESAT-MICAS, Dept. ElektrotechniekK.U. LeuvenLeuvenBelgium
  2. 2.ESAT-MICAS, Dept. ElektrotechniekK.U. LeuvenHeverleeBelgium

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