LM431B The Texas Instruments LM431B is a three-terminal adjustable regulator offering thermal stability. It can set output voltages between approximately 2.5V and 36V using external resistors.
Mfr Part #:

LM431B

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM431B is a three-terminal adjustable regulator offering thermal stability. It can set output voltages between approximately 2.5V and 36V using external resistors.
Total Stock: 258,286 pcs
$ Price Range: $0.75

LM431B Available from 1 distributor

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LM431B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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AEC Qualified
Automotive Grade
Industrial Grade
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Military Grade
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Output Current
Output Voltage
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LM431B Description

Short technical summary and product information.

The LM431B from Texas Instruments is a versatile three-terminal adjustable regulator designed for thermal stability across its operating temperature range. This component allows users to set the output voltage to any value between VREF (approximately 2.5V) and 36V by utilizing two external resistors.

 

Key electrical specifications include a maximum input voltage of 37V and a maximum output current of 100mA. The output voltage tolerance is rated at 1%. The device operates within a temperature range of -40°C to 85°C.

 

Packaged in a TO-92-3 configuration, the LM431B is designed for through-hole mounting. Its adjustable nature makes it suitable for various power supply and voltage regulation applications where precise voltage control is required.

LM431B Quick Information

Product Type: Adjustable Regulator
Series: LM431
Canonical Name: LM431B Adjustable Regulator
Subcategory: Adjustable Regulator

LM431B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM431B Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM431B Features

  • Three-terminal adjustable regulator
  • Output voltage set with two resistors
  • Max input voltage of 37V
  • Max output current of 100mA
  • TO-92-3 through-hole package

LM431B Applications

  • Used as a precision voltage reference in power supplies.
  • Ideal for shunt regulation in DC-DC converters.
  • Suitable for industrial temperature environments.
  • Can be used in battery charging circuits.

LM431B FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum input voltage for the LM431B?

The maximum input voltage for the LM431B is 37V.

What is the adjustable output voltage range of the LM431B?

The output voltage can be set to any value between approximately 2.5V and 36V.

What is the maximum output current for the LM431B?

The LM431B can provide a maximum output current of 100mA.

What is the operating temperature range of the LM431B?

The LM431B operates within a temperature range of -40°C to 85°C.

What package type is the LM431B supplied in?

The LM431B is supplied in a TO-92-3 package.

How is the LM431B mounted?

The LM431B is designed for through-hole mounting.

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