TS431

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Low voltage adjustable shunt reference

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  • The TS431 is a low-voltage, three-terminal, adjustable shunt voltage reference. The output voltage can be set to any value between Vref (1.24 V) and 6 V using two external resistors. The TS431 is able to operate at a lower voltage (1.24 V) and lower cathode current than the widely-used TL431 and TL1431 shunt voltage reference. When driving an optocoupler, the TS431 is particularly suitable for regulating 3.3 V switching power supplies.

    Key Features

    • AEC-Q100 qualified (SOT23-5)
    • Low voltage operation: 1.24 to 6 V
    • 2%, 1% and 0.5% voltage precision
    • Wide operating range cathode current: 60 μA to 30 mA
    • Low output impedance: 0.2 Ω
    • Typically stable for any capacitive loads
    • ESD protection:
    • Human body model: 2 kV
      • Machine model: 200 V
    • 100 ppm/°C temperature coefficient
    • Automotive grade version available

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Technical Documentation

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      Adjustable shunt voltage reference IC (automotive for SOT23-5)
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      PDF
      DS1254

      Adjustable shunt voltage reference IC (automotive for SOT23-5)

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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

    • Description Version Size Action
      Automotive Standard Analog Robustness and Performance 1.0
      3.02 MB
      PDF
      Power Management Guide 07.2020
      7.12 MB
      PDF

      Automotive Standard Analog Robustness and Performance

      Power Management Guide

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS431AILT
Active
SOT23-5L Industrial Ecopack2
TS431AIYLT
Active
SOT23-5L Automotive Ecopack2
TS431AIZ
Active
TO-92 Industrial Ecopack2
TS431AIZ-AP
Active
TO-92 Industrial Ecopack2
TS431AIZT
Active
TO-92 Industrial Ecopack2
TS431BILT
Active
SOT23-5L Industrial Ecopack2
TS431BIYLT
Active
SOT23-5L Automotive Ecopack2
TS431ILT
Active
SOT23-5L Industrial Ecopack2
TS431IYLT
Active
SOT23-5L Automotive Ecopack2
TS431IZ
NRND
TO-92 Industrial Ecopack2
TS431IZ-AP
Active
TO-92 Industrial Ecopack2
TS431IZT
Active
TO-92 Industrial Ecopack2

TS431AILT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431AIYLT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TS431AIZ

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431AIZ-AP

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431AIZT

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431BILT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431BIYLT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TS431ILT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431IYLT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TS431IZ

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431IZ-AP

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431IZT

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

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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Package
Packing Type
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
TS431AIYLT Available at 2 distributors

Distributor availability ofTS431AIYLT

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 9000 0 Order Now
ARROW EUROPE 3000 0 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

AVNET

Stock

9000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Buy now SOT23-5L Tape And Reel
Active
EAR99 MALAYSIA 0.24 / 1k
TS431IZT Available at 1 distributors

Distributor availability ofTS431IZT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2467 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

2467

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Buy now TO-92 Tape And Reel
Active
EAR99 CHINA 0.155 / 1k
TS431ILT Available at 6 distributors

Distributor availability ofTS431ILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1498 1 Order Now
COMPEL EUROPE 2 1 Order Now
RS COMPONENTS EUROPE 3110 1 Order Now
ARROW EUROPE 126000 0 Order Now
MOUSER WORLDWIDE 5507 1 Order Now
Farnell Element14 EUROPE 1749 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

1498

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

3110

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

126000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

5507

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1749

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Buy now SOT23-5L Tape And Reel
Active
EAR99 MALAYSIA 0.155 / 1k
TS431AIZ-AP No availability of distributors reported, please contact our sales office Buy now TO-92 Tape And Reel
Active
EAR99 CHINA 0.162 / 1k
TS431AILT Available at 5 distributors

Distributor availability ofTS431AILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6829 1 Order Now
RS COMPONENTS EUROPE 10900 1 Order Now
FUTURE WORLDWIDE 6000 3000 Order Now
ARROW EUROPE 15000 0 Order Now
MOUSER WORLDWIDE 6268 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

6829

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

10900

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

6000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

15000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6268

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Buy now SOT23-5L Tape And Reel
Active
EAR99 MALAYSIA 0.162 / 1k
TS431IZ-AP No availability of distributors reported, please contact our sales office TO-92 Tape And Reel
Active
EAR99 CHINA 0.155 / 1k
TS431IZ No availability of distributors reported, please contact our sales office Buy now TO-92 Poly Bag
NRND
EAR99 CHINA 0.155 / 1k
TS431AIZ No availability of distributors reported, please contact our sales office Buy now TO-92 Poly Bag
Active
EAR99 CHINA 0.162 / 1k
TS431BIYLT Available at 4 distributors

Distributor availability ofTS431BIYLT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1210 1 Order Now
ARROW EUROPE 6000 0 Order Now
MOUSER WORLDWIDE 1901 1 Order Now
Farnell Element14 EUROPE 2681 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

1210

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

6000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1901

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2681

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Buy now SOT23-5L Tape And Reel
Active
EAR99 MALAYSIA 0.257 / 1k
TS431BILT Available at 6 distributors

Distributor availability ofTS431BILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3404 1 Order Now
AVNET AMERICA 3000 0 Order Now
FUTURE WORLDWIDE 12000 3000 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 6030 1 Order Now
Farnell Element14 EUROPE 1270 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

3404

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

12000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6030

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1270

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Buy now SOT23-5L Tape And Reel
Active
EAR99 MALAYSIA 0.161 / 1k
TS431IYLT No availability of distributors reported, please contact our sales office Buy now SOT23-5L Tape And Reel
Active
EAR99 MALAYSIA 0.161 / 1k
TS431AIZT No availability of distributors reported, please contact our sales office Buy now TO-92 Tape And Reel
Active
EAR99 CHINA 0.162 / 1k

TS431AIYLT

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.24 / 1k

Distributor availability ofTS431AIYLT

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 9000 0 Order Now
ARROW EUROPE 3000 0 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

AVNET

Stock

9000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.24 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

TS431IZT

Package

TO-92

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.155 / 1k

Distributor availability ofTS431IZT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2467 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

2467

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.155 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

TS431ILT

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.155 / 1k

Distributor availability ofTS431ILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1498 1 Order Now
COMPEL EUROPE 2 1 Order Now
RS COMPONENTS EUROPE 3110 1 Order Now
ARROW EUROPE 126000 0 Order Now
MOUSER WORLDWIDE 5507 1 Order Now
Farnell Element14 EUROPE 1749 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

1498

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

3110

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

126000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

5507

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1749

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.155 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

TS431AIZ-AP

Package

TO-92

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.162 / 1k

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.162 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

TS431AILT

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.162 / 1k

Distributor availability ofTS431AILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6829 1 Order Now
RS COMPONENTS EUROPE 10900 1 Order Now
FUTURE WORLDWIDE 6000 3000 Order Now
ARROW EUROPE 15000 0 Order Now
MOUSER WORLDWIDE 6268 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

6829

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

10900

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

6000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

15000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6268

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-06

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.162 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

TS431IZ-AP

Package

TO-92

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.155 / 1k

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.155 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

TS431IZ

Package

TO-92

Packing Type

Poly Bag

Budgetary Price (US$)*/Qty

0.155 / 1k

Marketing Status

NRND

Budgetary Price (US$)* / Qty

0.155 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

TS431AIZ

Package

TO-92

Packing Type

Poly Bag

Budgetary Price (US$)*/Qty

0.162 / 1k

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.162 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

TS431BIYLT

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.257 / 1k

Distributor availability ofTS431BIYLT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1210 1 Order Now
ARROW EUROPE 6000 0 Order Now
MOUSER WORLDWIDE 1901 1 Order Now
Farnell Element14 EUROPE 2681 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

1210

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

6000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1901

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2681

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.257 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

TS431BILT

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.161 / 1k

Distributor availability ofTS431BILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3404 1 Order Now
AVNET AMERICA 3000 0 Order Now
FUTURE WORLDWIDE 12000 3000 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 6030 1 Order Now
Farnell Element14 EUROPE 1270 1 Order Now

Distributor reported inventory date: 2020-07-06

Distributor Name

DIGIKEY

Stock

3404

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

12000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6030

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1270

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-06

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.161 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

TS431IYLT

Package

SOT23-5L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.161 / 1k

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.161 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

TS431AIZT

Package

TO-92

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.162 / 1k

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.162 / 1k

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