TITLE

Switching regulators replace linear regulators in automotive

AUTHOR(S)
Armstrong, Tony
PUB. DATE
April 2004
SOURCE
Portable Design;Apr2004, Vol. 10 Issue 4, p28
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
Wide operating voltages coupled with large transient voltages and temperature excursions combine to make life tough on electronic systems in automobiles. As a result, over the last several years, primarily due to thermal constraints, switching regulators have been replacing linear regulators. The benefits of a switcher, including increased efficiency and smaller footprint, outweigh the additional complexity and electromagnetic interference (EMI) considerations. Taking these constraints into account, for a switching regulator to be considered, it would need the following features and characteristics: a wide input operating range, good efficiency across a wide load range, low quiescent current during normal operation, standby, shutdown, and low thermal resistance, and minimal noise and EMI emissions.
ACCESSION #
12802579

 

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