TS4431

Active

1.224V Open Collector Shunt Voltage Reference

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Product overview

Description

The TS4431 is a four-terminal device dedicated to low voltage Switch Mode Power Supplies (SMPS). It integrates a 1.224V voltage reference, an amplifier, and an open collector output transistor in a single package. The TS4431’s operating mode is similar to the well-known standard voltage reference, the TL431. It maintains the desired feedback voltage at the REF pin in a closed loop configuration by sinking a current proportional to the error voltage at the REF pin.
TS4431 features an open collector transistor with an ultra-low saturation voltage, allowing it to be used in series with the optocoupler in an SMPS architecture to regulate low voltage SMPS.
  • All features

    • Internal 1.224V ±0.5% precision
    • Low current consumption: 250 µA
    • Low output saturation voltage 75 mV max between SINK and GND
    • 100ppm/˚C temperature coefficient
    • Industrial temperature range: -40 to +85˚C

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STMicroelectronics - TS4431

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS4431AILT
Active
SOT23-5L Industrial Ecopack2
TS4431ILT
Active
SOT23-5L Industrial Ecopack2

TS4431AILT

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS4431ILT

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

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
TS4431AILT Available at 1 distributors

Distributor availability ofTS4431AILT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2803 1 Order Now

Distributor reported inventory date: 2021-06-19

Distributor Name

MOUSER

Stock

2803

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-06-19

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 85 MALAYSIA 0.368 / 1k
TS4431ILT Available at 1 distributors

Distributor availability ofTS4431ILT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1519 1 Order Now

Distributor reported inventory date: 2021-06-19

Distributor Name

MOUSER

Stock

1519

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-06-19

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 85 MALAYSIA 0.3507 / 1k

TS4431AILT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.368 / 1k

Distributor availability ofTS4431AILT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2803 1 Order Now

Distributor reported inventory date: 2021-06-19

Distributor Name

MOUSER

Stock

2803

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-06-19

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

0.368 / 1k

Country of Origin

MALAYSIA

TS4431ILT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3507 / 1k

Distributor availability ofTS4431ILT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1519 1 Order Now

Distributor reported inventory date: 2021-06-19

Distributor Name

MOUSER

Stock

1519

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-06-19

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

0.3507 / 1k

Country of Origin

MALAYSIA

(*) 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