STMicroelectronics LM317L Manuals

STMicroelectronics LM217L/LM317L Adjustable Voltage Regulator Datasheet

The LM217L and LM317L are monolithic integrated circuits available in SO-8 and TO-92 packages, designed as positive adjustable voltage regulators. They supply up to 100 mA of load current with an output voltage adjustable from 1.2 V to 37 V. The nominal output voltage is selected using a resistive divider, making the device easy to use without stocking many fixed regulators.

These regulators include features such as thermal overload protection, short circuit protection, and output transition safe area compensation. They are suitable for floating operation in high voltage applications as long as the maximum input-to-output differential voltage is not exceeded. The device minimizes the adjustment pin current to maintain a constant voltage across the external resistor divider.