Published:2009/7/20 6:48:00 Author:Jessie | From:SeekIC
Output voltage is held within 0.1% despite 5-v variations in 20-v input to regulator that itself consumes only 1.5 ma. Differential amplifier Q5 acts as voltage comparator, with zener diode D3 as reference.-A. Dargis, A High Performance Voltage Regulator, Electronics, 37:13, p 75.
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