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LM 317 Power Supply Circuit
IC LM317 is a series adjustable three terminal positive voltage regulator. This type of regulators produces the output voltage range from 1.2 to 37V and output current from 0.1 to 1.5 Amp. The LM 317 series regulators are available in standard transistor packages that are easily mounted and handled. It's three terminals are Vin, Vout and ADJ (Adjustment).The LM317K regulator is internally protected from current and thermal overloads. A heat sink will be required for most applications however.
Part pinout of LM317T
LM 317 - Presentation: See also: