Product overview
Description
The LM217, LM317 are monolithic integrated circuits in TO-220, TO-220FP and D²PAK 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.
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All features
- 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
Featured Videos
All resources
| Resource title | Latest update |
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Product Specifications (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 06 Aug 2019 | 06 Aug 2019 |
Selection Guides (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 19 Mar 2021 | 19 Mar 2021 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - LM317
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LM317BT | Active | TO-220 | Industrial | Ecopack2 | |
| LM317D2T-TR | Active | D2PAK | Industrial | Ecopack2 | |
| LM317P | Active | TO-220FP | Industrial | Ecopack2 | |
| LM317T | Active | TO-220 | Industrial | Ecopack2 | |
| LM317T-DG | Active | TO-220 | Industrial | Ecopack2 (**) |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| LM317D2T-TR | 5 distributors | Active | EAR99 | NEC | Tape And Reel | D2PAK | 0 | 125 | CHINA | 0.32 / 1k | ||
| LM317BT | 3 distributors | Active | EAR99 | NEC | Tube | TO-220 | -40 | 125 | CHINA | 0.23 / 1k | ||
| LM317T-DG | 6 distributors | Buy Direct | Active | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | 0.192 / 1k | |
| LM317T | 7 distributors | Buy Direct | Active | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | 0.144 / 1k | |
| LM317P | 8 distributors | Buy Direct | Active | EAR99 | NEC | Tube | TO-220FP | 0 | 125 | CHINA | 0.306 / 1k | |
Marketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.32 / 1kMarketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.23 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
