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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

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS0433
      1.2 V to 37 V adjustable voltage regulators
      21.0
      988.2 KB
      PDF
      DS0433

      1.2 V to 37 V adjustable voltage regulators

Publications and Collaterals

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LM217D2T-TR
Active
D2PAK Industrial Ecopack2
LM217T
Active
TO-220 Industrial Ecopack2
LM217T-DG
Active
TO-220 Industrial Ecopack1

LM217D2T-TR

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM217T

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM217T-DG

Package:

TO-220

Material Declaration**:

PDF XML

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.

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
LM217D2T-TR Available at 6 distributors

Distributor availability ofLM217D2T-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9378 1 Order Now
COMPEL EUROPE 4775 1 Order Now
AVNET AMERICA 16000 0 Order Now
ARROW EUROPE 7000 0 Order Now
MOUSER WORLDWIDE 3810 1 Order Now
Farnell Element14 EUROPE 1262 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

9378

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

4775

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

16000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

7000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3810

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1262

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-13

Buy now
Active
EAR99 NEC Tape And Reel D2PAK -25 150 CHINA 0.32 / 1k
LM217T-DG Available at 3 distributors

Distributor availability ofLM217T-DG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2981 1 Order Now
ARROW EUROPE 1070 0 Order Now
MOUSER WORLDWIDE 3552 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

2981

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1070

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3552

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-13

Buy now
Active
EAR99 NEC Tube TO-220 -25 150 CHINA 0.32 / 1k
LM217T Available at 10 distributors

Distributor availability ofLM217T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1955 1 Order Now
COMPEL EUROPE 435 1 Order Now
RS COMPONENTS EUROPE 594 1 Order Now
AVNET AMERICA 4209 0 Order Now
FUTURE WORLDWIDE 776 1 Order Now
ARROW EUROPE 5718 0 Order Now
Newark Element14 AMERICA 23 0 Order Now
ARROW AMERICA 17000 1000 Order Now
MOUSER WORLDWIDE 8195 1 Order Now
Farnell Element14 EUROPE 977 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

1955

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

435

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

594

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

4209

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

776

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5718

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

23

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

17000

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

8195

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

977

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-13

Buy now
Active
EAR99 NEC Tube TO-220 -25 150 CHINA 0.272 / 1k

LM217D2T-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.32 / 1k

Distributor availability ofLM217D2T-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9378 1 Order Now
COMPEL EUROPE 4775 1 Order Now
AVNET AMERICA 16000 0 Order Now
ARROW EUROPE 7000 0 Order Now
MOUSER WORLDWIDE 3810 1 Order Now
Farnell Element14 EUROPE 1262 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

9378

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

4775

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

16000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

7000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3810

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1262

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-13

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-25

(max)

150

Budgetary Price (US$)* / Qty

0.32 / 1k

Country of Origin

CHINA

LM217T-DG

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.32 / 1k

Distributor availability ofLM217T-DG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2981 1 Order Now
ARROW EUROPE 1070 0 Order Now
MOUSER WORLDWIDE 3552 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

2981

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1070

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3552

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-13

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-25

(max)

150

Budgetary Price (US$)* / Qty

0.32 / 1k

Country of Origin

CHINA

LM217T

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.272 / 1k

Distributor availability ofLM217T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1955 1 Order Now
COMPEL EUROPE 435 1 Order Now
RS COMPONENTS EUROPE 594 1 Order Now
AVNET AMERICA 4209 0 Order Now
FUTURE WORLDWIDE 776 1 Order Now
ARROW EUROPE 5718 0 Order Now
Newark Element14 AMERICA 23 0 Order Now
ARROW AMERICA 17000 1000 Order Now
MOUSER WORLDWIDE 8195 1 Order Now
Farnell Element14 EUROPE 977 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

1955

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

435

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

594

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

4209

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

776

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5718

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

23

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

17000

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

8195

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

977

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-13

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-25

(max)

150

Budgetary Price (US$)* / Qty

0.272 / 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