LM317

Active

1.2 V to 37 V adjustable voltage regulators

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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

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Related Applications

Industrial

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STMicroelectronics - LM317

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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
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
LM317D2T-TR Available at 6 distributors

Distributor availability ofLM317D2T-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 27137 1 Order Now
RS COMPONENTS EUROPE 7155 5 Order Now
FUTURE WORLDWIDE 35604 1 Order Now
MOUSER WORLDWIDE 5134 1 Order Now
Farnell Element14 EUROPE 6000 1 Order Now
ANGLIA Live EUROPE 5000 1000 Order Now

Distributor reported inventory date: 2021-04-20

Distributor Name

DIGIKEY

Stock

27137

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7155

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

35604

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5134

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6000

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5000

Min.Order

1000

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-20

Buy Direct
Active
EAR99 NEC Tape And Reel D2PAK 0 125 CHINA 0.32 / 1k
LM317BT Available at 4 distributors

Distributor availability ofLM317BT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6379 1 Order Now
RS COMPONENTS EUROPE 2680 50 Order Now
MOUSER WORLDWIDE 5000 1 Order Now
Farnell Element14 EUROPE 6301 1 Order Now

Distributor reported inventory date: 2021-04-19

Distributor Name

DIGIKEY

Stock

6379

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2680

Min.Order

50

Region

EUROPE Order Now

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6301

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-19

Buy Direct
Active
EAR99 NEC Tube TO-220 -40 125 CHINA 0.23 / 1k
LM317T-DG Available at 6 distributors

Distributor availability ofLM317T-DG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9205 1 Order Now
RS COMPONENTS EUROPE 75 1 Order Now
AVNET AMERICA 11545 0 Order Now
Newark Element14 AMERICA 114 0 Order Now
MOUSER WORLDWIDE 3535 1 Order Now
Farnell Element14 EUROPE 1306 1 Order Now

Distributor reported inventory date: 2021-04-19

Distributor Name

DIGIKEY

Stock

9205

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

75

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

11545

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

114

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3535

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1306

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-19

Buy Direct
Active
EAR99 NEC Tube TO-220 0 125 CHINA 0.192 / 1k
LM317T Available at 6 distributors

Distributor availability ofLM317T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 30467 1 Order Now
RS COMPONENTS EUROPE 16448 50 Order Now
AVNET AMERICA 76909 0 Order Now
Newark Element14 AMERICA 708 0 Order Now
MOUSER WORLDWIDE 67836 1 Order Now
Farnell Element14 EUROPE 63032 1 Order Now

Distributor reported inventory date: 2021-04-19

Distributor Name

DIGIKEY

Stock

30467

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

16448

Min.Order

50

Region

EUROPE Order Now

AVNET

Stock

76909

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

708

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

67836

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

63032

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-19

Buy Direct
Active
EAR99 NEC Tube TO-220 0 125 CHINA 0.144 / 1k
LM317P Available at 8 distributors

Distributor availability ofLM317P

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3467 1 Order Now
RS COMPONENTS EUROPE 1500 10 Order Now
AVNET AMERICA 943 0 Order Now
FUTURE WORLDWIDE 1095 50 Order Now
Newark Element14 AMERICA 1 0 Order Now
MOUSER WORLDWIDE 1939 1 Order Now
Farnell Element14 EUROPE 3186 1 Order Now
ANGLIA Live EUROPE 5890 1 Order Now

Distributor reported inventory date: 2021-04-20

Distributor Name

DIGIKEY

Stock

3467

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1500

Min.Order

10

Region

EUROPE Order Now

AVNET

Stock

943

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1095

Min.Order

50

Region

WORLDWIDE Order Now

Newark Element14

Stock

1

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1939

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3186

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5890

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-20

Buy Direct
Active
EAR99 NEC Tube TO-220FP 0 125 CHINA 0.306 / 1k

LM317D2T-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.32 / 1k

Distributor availability ofLM317D2T-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 27137 1 Order Now
RS COMPONENTS EUROPE 7155 5 Order Now
FUTURE WORLDWIDE 35604 1 Order Now
MOUSER WORLDWIDE 5134 1 Order Now
Farnell Element14 EUROPE 6000 1 Order Now
ANGLIA Live EUROPE 5000 1000 Order Now

Distributor reported inventory date: 2021-04-20

Distributor Name

DIGIKEY

Stock

27137

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7155

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

35604

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5134

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6000

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5000

Min.Order

1000

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-20

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

0

(max)

125

Budgetary Price (US$)* / Qty

0.32 / 1k

Country of Origin

CHINA

LM317BT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.23 / 1k

Distributor availability ofLM317BT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6379 1 Order Now
RS COMPONENTS EUROPE 2680 50 Order Now
MOUSER WORLDWIDE 5000 1 Order Now
Farnell Element14 EUROPE 6301 1 Order Now

Distributor reported inventory date: 2021-04-19

Distributor Name

DIGIKEY

Stock

6379

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2680

Min.Order

50

Region

EUROPE Order Now

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6301

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-19

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.23 / 1k

Country of Origin

CHINA

LM317T-DG

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.192 / 1k

Distributor availability ofLM317T-DG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9205 1 Order Now
RS COMPONENTS EUROPE 75 1 Order Now
AVNET AMERICA 11545 0 Order Now
Newark Element14 AMERICA 114 0 Order Now
MOUSER WORLDWIDE 3535 1 Order Now
Farnell Element14 EUROPE 1306 1 Order Now

Distributor reported inventory date: 2021-04-19

Distributor Name

DIGIKEY

Stock

9205

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

75

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

11545

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

114

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3535

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1306

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-19

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

0

(max)

125

Budgetary Price (US$)* / Qty

0.192 / 1k

Country of Origin

CHINA

LM317T

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.144 / 1k

Distributor availability ofLM317T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 30467 1 Order Now
RS COMPONENTS EUROPE 16448 50 Order Now
AVNET AMERICA 76909 0 Order Now
Newark Element14 AMERICA 708 0 Order Now
MOUSER WORLDWIDE 67836 1 Order Now
Farnell Element14 EUROPE 63032 1 Order Now

Distributor reported inventory date: 2021-04-19

Distributor Name

DIGIKEY

Stock

30467

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

16448

Min.Order

50

Region

EUROPE Order Now

AVNET

Stock

76909

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

708

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

67836

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

63032

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-19

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

0

(max)

125

Budgetary Price (US$)* / Qty

0.144 / 1k

Country of Origin

CHINA

LM317P

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.306 / 1k

Distributor availability ofLM317P

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3467 1 Order Now
RS COMPONENTS EUROPE 1500 10 Order Now
AVNET AMERICA 943 0 Order Now
FUTURE WORLDWIDE 1095 50 Order Now
Newark Element14 AMERICA 1 0 Order Now
MOUSER WORLDWIDE 1939 1 Order Now
Farnell Element14 EUROPE 3186 1 Order Now
ANGLIA Live EUROPE 5890 1 Order Now

Distributor reported inventory date: 2021-04-20

Distributor Name

DIGIKEY

Stock

3467

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1500

Min.Order

10

Region

EUROPE Order Now

AVNET

Stock

943

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1095

Min.Order

50

Region

WORLDWIDE Order Now

Newark Element14

Stock

1

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1939

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3186

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5890

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-04-20

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220FP

Operating Temperature (°C)

(min)

0

(max)

125

Budgetary Price (US$)* / Qty

0.306 / 1k

Country of Origin

CHINA

(*) 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