LM317

Active

1.2 V to 37 V adjustable voltage regulators

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Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Partner products
Sales Briefcase

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.
  • 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

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

Symbols

Footprints

Footprints

3D model

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

LM317BT

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM317D2T-TR

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM317P

Package:

TO-220FP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220FP

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM317T

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM317T-DG

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

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 Available at 4 distributors

Distributor availability ofLM317D2T-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2056 1 Buy from Distributor
COMPEL EUROPE 10407 1 Buy from Distributor
RS COMPONENTS EUROPE 60 5 Buy from Distributor
Farnell Element14 EUROPE 410 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

2056

Min.Order

1

Region

WORLDWIDE Buy from Distributor

COMPEL

Stock

10407

Min.Order

1

RS COMPONENTS

Stock

60

Min.Order

5

Farnell Element14

Stock

410

Min.Order

1

Distributor reported inventory date: 2021-12-05

Active
EAR99 NEC Tape And Reel D2PAK 0 125 CHINA 0.4647 / 1k
LM317BT Available at 1 distributors

Distributor availability ofLM317BT

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 5314 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

COMPEL

Stock

5314

Min.Order

1

Distributor reported inventory date: 2021-12-05

Active
EAR99 NEC Tube TO-220 -40 125 CHINA 0.1898 / 1k
LM317T-DG Available at 2 distributors

Distributor availability ofLM317T-DG

Distributor Name
Region Stock Min. Order Third party link
YOSUN ASIA/PACIFIC 1000 1 Buy from Distributor
COMPEL EUROPE 805 1 Buy from Distributor

Distributor reported inventory date: 2021-12-06

Distributor Name

YOSUN

Stock

1000

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

COMPEL

Stock

805

Min.Order

1

Distributor reported inventory date: 2021-12-06

Active
EAR99 NEC Tube TO-220 0 125 CHINA 0.2853 / 1k
LM317T Available at 6 distributors

Distributor availability ofLM317T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 17 1 Buy from Distributor
YOSUN ASIA/PACIFIC 1000 1 Buy from Distributor
RS COMPONENTS EUROPE 1938 50 Buy from Distributor
Newark Element14 AMERICA 4253 0 Buy from Distributor
MOUSER WORLDWIDE 551 1 Buy from Distributor
Farnell Element14 EUROPE 2000 1 Buy from Distributor

Distributor reported inventory date: 2021-12-06

Distributor Name

DIGIKEY

Stock

17

Min.Order

1

Region

WORLDWIDE Buy from Distributor

YOSUN

Stock

1000

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

RS COMPONENTS

Stock

1938

Min.Order

50

Newark Element14

Stock

4253

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

551

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

2000

Min.Order

1

Distributor reported inventory date: 2021-12-06

Buy Direct
Active
EAR99 NEC Tube TO-220 0 125 CHINA 0.2087 / 1k
LM317P Available at 2 distributors

Distributor availability ofLM317P

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 1876 1 Buy from Distributor
RS COMPONENTS EUROPE 100 10 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

COMPEL

Stock

1876

Min.Order

1

RS COMPONENTS

Stock

100

Min.Order

10

Distributor reported inventory date: 2021-12-05

Active
EAR99 NEC Tube TO-220FP 0 125 CHINA 0.4439 / 1k

LM317D2T-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4647 / 1k

Distributor availability ofLM317D2T-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2056 1 Buy from Distributor
COMPEL EUROPE 10407 1 Buy from Distributor
RS COMPONENTS EUROPE 60 5 Buy from Distributor
Farnell Element14 EUROPE 410 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

DIGIKEY

Stock

2056

Min.Order

1

Region

WORLDWIDE Buy from Distributor

COMPEL

Stock

10407

Min.Order

1

RS COMPONENTS

Stock

60

Min.Order

5

Farnell Element14

Stock

410

Min.Order

1

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

0

(max)

125

Budgetary Price (US$)* / Qty

0.4647 / 1k

Country of Origin

CHINA

LM317BT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1898 / 1k

Distributor availability ofLM317BT

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 5314 1 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

COMPEL

Stock

5314

Min.Order

1

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.1898 / 1k

Country of Origin

CHINA

LM317T-DG

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2853 / 1k

Distributor availability ofLM317T-DG

Distributor Name
Region Stock Min. Order Third party link
YOSUN ASIA/PACIFIC 1000 1 Buy from Distributor
COMPEL EUROPE 805 1 Buy from Distributor

Distributor reported inventory date: 2021-12-06

Distributor Name

YOSUN

Stock

1000

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

COMPEL

Stock

805

Min.Order

1

Distributor reported inventory date: 2021-12-06

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

0

(max)

125

Budgetary Price (US$)* / Qty

0.2853 / 1k

Country of Origin

CHINA

LM317T

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2087 / 1k

Distributor availability ofLM317T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 17 1 Buy from Distributor
YOSUN ASIA/PACIFIC 1000 1 Buy from Distributor
RS COMPONENTS EUROPE 1938 50 Buy from Distributor
Newark Element14 AMERICA 4253 0 Buy from Distributor
MOUSER WORLDWIDE 551 1 Buy from Distributor
Farnell Element14 EUROPE 2000 1 Buy from Distributor

Distributor reported inventory date: 2021-12-06

Distributor Name

DIGIKEY

Stock

17

Min.Order

1

Region

WORLDWIDE Buy from Distributor

YOSUN

Stock

1000

Min.Order

1

Region

ASIA/PACIFIC Buy from Distributor

RS COMPONENTS

Stock

1938

Min.Order

50

Newark Element14

Stock

4253

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

551

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

2000

Min.Order

1

Distributor reported inventory date: 2021-12-06

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

0

(max)

125

Budgetary Price (US$)* / Qty

0.2087 / 1k

Country of Origin

CHINA

LM317P

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4439 / 1k

Distributor availability ofLM317P

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 1876 1 Buy from Distributor
RS COMPONENTS EUROPE 100 10 Buy from Distributor

Distributor reported inventory date: 2021-12-05

Distributor Name

COMPEL

Stock

1876

Min.Order

1

RS COMPONENTS

Stock

100

Min.Order

10

Distributor reported inventory date: 2021-12-05

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220FP

Operating Temperature (°C)

(min)

0

(max)

125

Budgetary Price (US$)* / Qty

0.4439 / 1k

Country of Origin

CHINA

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors