1.2 V to 37 V adjustable voltage regulators

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  • 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.

    Key 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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LM317D2T-TR D2PAK Tape And Reel 0 125
Active
0.32 10000 EAR99
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Country of Origin:

CHINA

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LM317BT TO-220 Tube -40 125
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0.23 10000 EAR99
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CHINA

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DIGIKEY WORLDWIDE 4680 1 Order Now
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MOUSER WORLDWIDE 3276 1 Order Now
Farnell Element14 EUROPE 813 1 Order Now

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DIGIKEY

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4680

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1760

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4550

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3276

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813

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LM317T-DG TO-220 Tube 0 125
Active
0.192 10000 EAR99
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CHINA

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RS COMPONENTS EUROPE 1275 25 Order Now
FUTURE WORLDWIDE 12333 1 Order Now
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ARROW AMERICA 9666 1000 Order Now
MOUSER WORLDWIDE 3974 1 Order Now
Farnell Element14 EUROPE 263 1 Order Now

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1275

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12333

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16590

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9666

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1000

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3974

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263

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LM317T TO-220 Tube 0 125
Active
0.144 10000 EAR99
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CHINA

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Distributor availability ofLM317T

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DIGIKEY WORLDWIDE 26714 1 Order Now
RS COMPONENTS EUROPE 25821 50 Order Now
AVNET AMERICA 137658 0 Order Now
FUTURE WORLDWIDE 19430 1 Order Now
ARROW EUROPE 218508 0 Order Now
ARROW AMERICA 95994 1 Order Now
MOUSER WORLDWIDE 38607 1 Order Now
Farnell Element14 EUROPE 64611 1 Order Now
ANGLIA Live EUROPE 89000 50 Order Now
RUTRONIK EUROPE 6800 50 Order Now

Distributor reported inventory date: 2019-09-17

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DIGIKEY

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26714

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1

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RS COMPONENTS

Stock

25821

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50

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AVNET

Stock

137658

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0

Region

AMERICA Order Now

FUTURE

Stock

19430

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1

Region

WORLDWIDE Order Now

ARROW

Stock

218508

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

95994

Min.Order

1

Region

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Stock

38607

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1

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64611

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89000

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6800

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LM317P TO-220FP Tube 0 125
Active
0.306 10000 EAR99
MORE INFO

Country of Origin:

CHINA

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Distributor availability ofLM317P

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DIGIKEY WORLDWIDE 164 1 Order Now
RS COMPONENTS EUROPE 4090 10 Order Now
AVNET AMERICA 1593 0 Order Now
ARROW EUROPE 3504 0 Order Now
Newark Element14 AMERICA 29 0 Order Now
MOUSER WORLDWIDE 4825 1 Order Now
Farnell Element14 EUROPE 1632 1 Order Now
ANGLIA Live EUROPE 8300 1 Order Now
RUTRONIK EUROPE 1050 50 Order Now

Distributor reported inventory date: 2019-09-17

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DIGIKEY

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164

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1

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4090

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10

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1593

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3504

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29

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4825

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1

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Farnell Element14

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1632

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8300

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1050

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LM317D2T-TR

Package

D2PAK

Packing Type

Tape And Reel

Unit Price (US$)

0.32*

Distributor availability ofLM317D2T-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4218 1 Order Now
RS COMPONENTS EUROPE 10365 5 Order Now
AVNET AMERICA 62000 0 Order Now
FUTURE WORLDWIDE 106932 1 Order Now
ARROW EUROPE 2612 0 Order Now
Newark Element14 AMERICA 664 0 Order Now
ARROW AMERICA 7000 1000 Order Now
MOUSER WORLDWIDE 16336 1 Order Now
Farnell Element14 EUROPE 19542 1 Order Now
RUTRONIK EUROPE 8000 1000 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

4218

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

10365

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

62000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

106932

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2612

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

664

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

7000

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

16336

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

19542

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

8000

Min.Order

1000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.32

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM317BT

Package

TO-220

Packing Type

Tube

Unit Price (US$)

0.23*

Distributor availability ofLM317BT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4680 1 Order Now
RS COMPONENTS EUROPE 1760 10 Order Now
ARROW EUROPE 4550 0 Order Now
MOUSER WORLDWIDE 3276 1 Order Now
Farnell Element14 EUROPE 813 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

4680

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1760

Min.Order

10

Region

EUROPE Order Now

ARROW

Stock

4550

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3276

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

813

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

-40

(max)

125

Marketing Status

Active

Unit Price (US$)

0.23

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM317T-DG

Package

TO-220

Packing Type

Tube

Unit Price (US$)

0.192*

Distributor availability ofLM317T-DG

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 1275 25 Order Now
FUTURE WORLDWIDE 12333 1 Order Now
ARROW EUROPE 16590 0 Order Now
ARROW AMERICA 9666 1000 Order Now
MOUSER WORLDWIDE 3974 1 Order Now
Farnell Element14 EUROPE 263 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

RS COMPONENTS

Stock

1275

Min.Order

25

Region

EUROPE Order Now

FUTURE

Stock

12333

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

16590

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

9666

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

3974

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

263

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.192

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM317T

Package

TO-220

Packing Type

Tube

Unit Price (US$)

0.144*

Distributor availability ofLM317T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 26714 1 Order Now
RS COMPONENTS EUROPE 25821 50 Order Now
AVNET AMERICA 137658 0 Order Now
FUTURE WORLDWIDE 19430 1 Order Now
ARROW EUROPE 218508 0 Order Now
ARROW AMERICA 95994 1 Order Now
MOUSER WORLDWIDE 38607 1 Order Now
Farnell Element14 EUROPE 64611 1 Order Now
ANGLIA Live EUROPE 89000 50 Order Now
RUTRONIK EUROPE 6800 50 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

26714

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

25821

Min.Order

50

Region

EUROPE Order Now

AVNET

Stock

137658

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

19430

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

218508

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

95994

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

38607

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

64611

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

89000

Min.Order

50

Region

EUROPE Order Now

RUTRONIK

Stock

6800

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.144

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM317P

Package

TO-220FP

Packing Type

Tube

Unit Price (US$)

0.306*

Distributor availability ofLM317P

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 164 1 Order Now
RS COMPONENTS EUROPE 4090 10 Order Now
AVNET AMERICA 1593 0 Order Now
ARROW EUROPE 3504 0 Order Now
Newark Element14 AMERICA 29 0 Order Now
MOUSER WORLDWIDE 4825 1 Order Now
Farnell Element14 EUROPE 1632 1 Order Now
ANGLIA Live EUROPE 8300 1 Order Now
RUTRONIK EUROPE 1050 50 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

164

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4090

Min.Order

10

Region

EUROPE Order Now

AVNET

Stock

1593

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

3504

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

29

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4825

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1632

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

8300

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

1050

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.306

Quantity

10000

ECCN (US)

EAR99

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

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Technical Documentation

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      DS0433
      1.2 V to 37 V adjustable voltage regulators
      21.0
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      1.2 V to 37 V adjustable voltage regulators

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      Linear and Switching Voltage Regulators Selection Guide 3.0
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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 Ecopack1

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**:

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**:

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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.