The LM317L-N is an adjustable positive voltage regulator capable of supplying 100 mA over
a 1.2-V to 37-V output range. The LM317L-N is easy to use and requires only two external resistors
to set the output voltage. Both line and load regulation are better than standard fixed regulators.
The LM317L-N is available packaged in a standard, easy-to-use
TO-92 transistor package.
The LM317L-N offers full overload protection. Included on the chip are current limit, thermal overload protection, and safe area protection. Normally, no capacitors are required unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is required.
The LM317L-N uses floating topology and sees only the input-to-output differential voltage, therefore supplies of several hundred volts can be regulated, provided the maximum input-to-output differential is not exceeded. The device makes a simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM317L-N can be used as a precision current regulator.
The LM317L-N is available in a standard 3-pin TO-92 transistor package, the 8-pin SOIC package, and 6-pin DSBGA package. The LM317L-N is rated for operation over a −40°C to 125°C range.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | LM317L-N Wide VIN 100-mA Adjustable Voltage Regulator datasheet (Rev. L) | PDF | HTML | 19 Jan 2018 |
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 09 Aug 2017 | |
| Application note | Linear power for automated industrial systems | 09 Jan 2015 | ||
| Application note | AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) | 06 May 2013 | ||
| Application note | AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B) | 05 May 2013 | ||
| More literature | Die D/S LM317L MDA 3-Terminal Adj Regulator | 20 Sep 2012 | ||
| Application note | TO-92 Packing Options / Ordering Instructions (Rev. A) | 23 Jun 2010 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YPB) | 6 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
| TO-92 (LP) | 3 | Ultra Librarian |
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