The LM217L/LM317L are monolithic integrated circuits in SO-8 and TO-92 packages intended for use as positive adjustable voltage regulators. They are designed to supply up to 100mA of load current with an output voltage adjustable over a range of 1.2 to 37V. The device has a nominal output voltage selected by means of a resistive divider, making it easy to use and eliminating the need for stocking many fixed regulators. It features thermal overload protection, short circuit protection, and output transition safe area compensation. Floating operation is available for high voltage applications.
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.
| Output voltage range | 1.2 to 37V |
|---|---|
| Output current | in excess of 100 mA |
| Line regulation typ. | 0.01% |
| Load regulation typ. | 0.1% |
| Operating junction temperature range (LM217L) | -40 to 125 °C |
| Operating junction temperature range (LM317L) | 0 to 125 °C |
| Adjustment pin current max. | 100 µA |
The output voltage is adjustable over a range of 1.2 to 37V.
The device is designed to supply up to 100 mA of load current.
The regulators are available in SO-8 and TO-92 packages.