Adjustable/2.5 V, 1% 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 of 1.0 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
  • Fast turn-on response

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Product

Status

CAD Models

Compliance

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

LM431BCMX

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

3000

N

Adjustable

2.5

1

-

0.0015

36

-25

85

Price N/A

More Details

LM431BCZX

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Active

CAD Model

Pb

A

H

P

TO-92-3 LF

NA

0

REEL

2000

N

Adjustable

2.5

1

-

0.0015

36

-25

85

$0.0676

More Details

LM431BCZXA

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Active

CAD Model

Pb

A

H

P

TO-92-3 LF

NA

0

FNFLD

2000

N

Adjustable

2.5

1

-

0.0015

36

-25

85

$0.072

More Details

LM431BIZX

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Active

CAD Model

Pb

A

H

P

TO-92-3 LF

NA

0

REEL

2000

N

Adjustable

2.5

1

-

0.0015

36

-40

85

$0.0657

More Details

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