LM217, LM317 Datasheet 1.2 V to 37 V adjustable voltage regulators Features Output voltage range: 1.2 to 37 V Output current in excess of 1.5 A 0.1% line and load regulation TO-220 TO-220FP Floating operation for high voltages Complete series of protections: current limiting, thermal shutdown and SOA control Description DPAK SOT223 The LM217, LM317 are monolithic integrated circuits in TO-220, TO-220FP, DPAK and SOT223 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 Product status link the device exceptionally easy to use and eliminating the stocking of many fixed LM217 regulators. LM317 DS0433 - Rev 22 - December 2021 www.st.com For further information contact your local STMicroelectronics sales office.LM217, LM317 Pin configuration 1 Pin configuration Figure 1. Pin connections (top view) TO-220 TO-220FP OUTPUT ADJUST OUTPUT INPUT DPAK SOT223 DS0433 - Rev 22 page 2/34