Solderman Basic Electronics

Basic Electronics, Practical Electronic Projects, Learning Circuit design, Electrical Fundamentals. Edutainment and Interactive Examples.

Search This Blog

Saturday, January 03, 2015

Voltage Regulators LM7812 and LM317

The LM78XX series of three-terminal positive regulators is available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut-down, and safe operating area protection.

Fairchild LM7812

LM7812 


LM317

Adjustable power supply
"The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range.
    3-Terminal Adjustable Regulator

    LM317 Variable Power Supply

    Learn More Electronics