REGULATED_3_V_SUPPLY

Published:2009/7/20 4:18:00 Author:Jessie | From:SeekIC

Junction diode D1 provides nonlinear voltage-current characteristic of tenor diode, as required for reference level below 2 v. Poor temperature characteristics of junction diode are offset by base-emitter voltage variation of transistor Q1 with temperature. Regulated output of 3 v within 2%, at 5 to 100 ma, is obtained from unregulated 4.8-v source over range of -16°C to +50°C.-A. K. Scidmore, Junction Diode Regulates Low-Voltage Supply, Electronics, 37:27, p 55-56.



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