Voltage References | TL431B

Voltage Reference, Programmable Precision, Shunt Regulator

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The TL431, A, B integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. These devices exhibit a wide operating current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 W. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the TL431, A, B operates as a shunt regulator, it can be used as either a positive or negative voltage reference.

  • Programmable Output Voltage to 36 V
  • Voltage Reference Tolerance: +/- 0.4%, Typ @ 25°C (TL431B)
  • Low Dynamic Output Impedance, 0.22 W Typical
  • Sink Current Capability of 1.0 mA to 100 mA
  • Equivalent Full-Range Temperature Coefficient of 50 ppm/ °C Typical
  • Temperature Compensated for Operation over Full Rated Operating Temperature Range
  • Low Output Noise Voltage
  • Pb-Free Packages are Available

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Type

V(BR) Typ (V)

Tolerance (%)

IQ Typ (mA)

IR Min (mA)

VF Max (V)

TA Min (°C)

TA Max (°C)

Reference Price

TL431BCDG

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

TUBE

98

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

More Details

TL431BCDMR2G

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Obsolete

CAD Model

Pb

A

H

P

Micro8

846A-02

1

260

REEL

4000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

More Details

TL431BCDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

0.4

0.5

1

36

0

70

$0.1741

More Details

TL431BCLPG

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Last Shipments

CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

BLKBG

2000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

More Details

TL431BCLPRAG

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Active

CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

REEL

2000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

$0.1164

More Details

TL431BCLPREG

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Obsolete

CAD Model

Pb

A

H

P

TO-92

29-11

NA

0

REEL

2000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

More Details

TL431BCLPRMG

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Last Shipments

CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

FNFLD

2000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

More Details

TL431BCPG

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Obsolete

CAD Model

Pb

A

H

P

PDIP-8

626-05

NA

0

TUBE

50

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

More Details

TL431BIDG

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Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

TUBE

98

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

$0.1709

More Details

TL431BIDMR2G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

Micro8

846A-02

1

260

REEL

4000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

More Details

TL431BIDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

$0.1709

More Details

TL431BILPG

Loading...

Active

CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

BLKBG

2000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

$0.1551

More Details

TL431BILPRAG

Loading...

Active

CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

REEL

2000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

$0.1747

More Details

TL431BIPG

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

626-05

NA

0

TUBE

50

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

More Details

TL431BVDG

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

TUBE

98

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

More Details

TL431BVDMR2G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

Micro8

846A-02

1

260

REEL

4000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

More Details

TL431BVDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

0.4

0.5

1

36

-40

125

$0.1709

More Details

TL431BVLPG

Loading...

Last Shipments

CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

BLKBG

2000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

More Details

TL431BVLPRAG

Loading...

Last Shipments

CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

REEL

2000

N

Adjustable

2.5

0.4

0.5

1

36

-40

125

Price N/A

More Details

TL431BVPG

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

626-05

NA

0

TUBE

50

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

More Details

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