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A complete series voltage regulator circuit capable of delivering /SUP 1///SUB 2/ ampere of current has been built on a single 63/spl times/66-mil die using the conventional all- diffused processing technology. Improved performance has been achieved by using an internal low-power voltage regulator to supply the desired dc output voltage reference directly to a second main regulator. This permits the dc and ac characteristics of the regulator to be separately optimized with the result that excellent transient characteristics are realized simultaneously with low drift and excellent regulation.
Date of Publication: Dec. 1968