Voltage References | LM431A

Adjustable/2.5 V, 2% Tolerance Shunt Regulator

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Overview

The LM431A / LM431B / LM431C are three terminal output adjustable regulators with thermal stability over the full operating temperature range. The output voltage can be set to any value between VREF (approximately 2.5 V) and 36 V with two external resistors. These devices have a typical dynamic output impedance of 0.2 Ω. Active output circuit provides a sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications.

  • This product is general usage and suitable for many different applications.

  • Programmable output voltage to 36 V
  • Low dynamic output impedance 0.2 Ω (Typical)
  • Sink current capability: 1.0 to 100 mA
  • Equivalent full-range temperature coefficient of 50ppm/°C (Typical)
  • Temperature compensated for operation over full rated operating temperature range
  • Low output noise voltage
  • Fast turn-on response

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Reference Price

LM431ACMX

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Obsolete

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CAD Model

Pb

A

H

P

SOIC-8

751EB

1

260

REEL

3000

N

Adjustable

2.5

2

-

0.0015

36

-25

85

Price N/A

More Details

LM431ACZ

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CAD Model

Pb

A

H

P

TO-92-3

135AN

NA

0

BLKBG

10000

N

Adjustable

2.5

2

-

0.0015

36

-25

85

Price N/A

More Details

LM431ACZX

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Last Shipments

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CAD Model

Pb

A

H

P

TO-92-3 LF

135AR

NA

0

REEL

2000

N

Adjustable

2.5

2

-

0.0015

36

-25

85

Price N/A

More Details

LM431ACZXA

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Obsolete

CAD Model

Pb

A

H

P

E-PKG AXIAL-LEADED GLASS DIODE

017AE

NA

-

-

30000

N

-

2.5

-

-

-

-

-

-

Price N/A

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LM431AIMX

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Obsolete

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CAD Model

Pb

A

H

P

SOIC-8

751EB

1

260

REEL

3000

N

Adjustable

2.5

2

-

0.0015

36

-40

85

Price N/A

More Details

LM431AIZ

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Lifetime

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CAD Model

Pb

A

H

P

TO-92-3

135AN

NA

0

BLKBG

10000

N

Adjustable

2.5

2

-

0.0015

36

-40

85

$0.0701

More Details

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Reliability Data

Die Related Summary Data

Device: LM431ACZ

Equivalent to wafer fab process: 8

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

8

0

65794531

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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