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The LM317 is a monolithic integrated circuit in TO-220 packages intended for use as positive adjustable voltage regulators. They are designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 to 37 V range. The nominal output voltage is selected by means of a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators.
Output voltage range: 1.2 to 37 V
Output current in excess of 1.5 A
0.1 % line and load regulation
Floating operation for high voltages
Complete series of protections: current limiting, thermal shutdown and SOA control