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Datasheet Texas Instruments LM431AIZ/NOPB

Datasheet Texas Instruments LM431AIZ/NOPB

ManufacturerTexas Instruments
Part NumberLM431AIZ/NOPB

Adjustable Precision Zener Shunt Regulator 3-TO-92 -40 to 85


  • Download » Datasheet PDF, 1.6 Mb, Revision: H, File published: Jan 6, 2016
    LM431 Adjustable Precision Zener Shunt Regulator datasheet
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    Documents LM431
    SNVS020H – MAY 2000 – REVISED JANUARY 2016 LM431 Adjustable Precision Zener Shunt Regulator
    1 Features 3 Description The LM431 is a 3-terminal adjustable shunt regulator
    with ensured temperature stability over the entire
    temperature range of operation. The output voltage
    may be set at any level greater than 2.5 V (VREF) up
    to 36 V merely by selecting two external resistors that
    act as a voltage divided network. Due to the sharp
    turnon characteristics this device is an excellent
    replacement for many Zener diode applications. 1 Average Temperature Coefficient 50 ppm/В°C
    Temperature Compensated for Operation Over
    the Full Temperature Range
    Programmable Output Voltage
    Fast Turnon Response
    Low-Output Noise
    Low-Dynamic Output Impedance
    Available in Space-Saving SOIC-8, SOT-23, and
    TO-92 Packages 2 Applications Adjustable Voltage or Current Linear and ...


Family: LM431


Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes


Package TypeLPLP
Industry STD TermTO-92TO-92
Package QTY18001800
Device MarkingAIZLM431
Width (mm)4.34.3
Length (mm)4.34.3
Thickness (mm)3.63.6
Pitch (mm)1.271.27
Max Height (mm)5.345.34
Mechanical DataDownload »Download »


Initial Accuracy(Max)0.5,1,2 %
Iout/Iz(Max)100 mA
Min Iz for Regulation400 uA
Operating Temperature Range-40 to 85,0 to 70 C
Package GroupTO-92
Package Size: mm2:W x L3TO-92: 18 mm2: 4.3 x 4.3(TO-92) PKG
Pin/Package3SOT-23, 3TO-92, 8SOIC
Reference VoltageAdjustable
Temp Coeff(Max)97 ppm/ degree C
Temp Coeff(Typ)50 ppm/ degree C
VO2.5 V
VO Adj(Max)36 V
VO Adj(Min)2.5 V

Eco Plan


Application Notes

  • Download » Application Notes PDF, 287 Kb, Revision: A, File published: Jun 23, 2010
    TO-92 Packing Options / Ordering Instructions (Rev. A)

Moldel Line

Series: LM431 (45)

Manufacturer's Classification

  • Semiconductors > Power Management > Voltage Reference > Shunt Voltage Reference
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