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2 of 4 articles

78xx 79xx Series

Fixed voltage regulators, pinout, applications.

Mohith N
Updated: 19 March 2026
7 min read

78xx 79xx Regulators

Test your understanding of fixed IC voltage regulators and their pinout configurations.

Question 1 of 3

Q1.The 7812 voltage regulator IC provides a fixed output of +12 V. The minimum input voltage required for proper regulation (assuming 2 V dropout) is: