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Datasheet Texas Instruments TL431CPK

Datasheet Texas Instruments TL431CPK

ManufacturerTexas Instruments
Part NumberTL431CPK

2% Accuracy Adjustable Precision Shunt Regulator 3-SOT-89 0 to 70


  • Download » Datasheet PDF, 2.9 Mb, Revision: O, File published: Jan 29, 2015
    TL43xx Precision Programmable Reference datasheet
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    Documents TL431, TL431A, TL431B
    TL432, TL432A, TL432B
    SLVS543O – AUGUST 2004 – REVISED JANUARY 2015 TL43xx Precision Programmable Reference
    1 Features 3 Description The TL431 and TL432 devices are three-terminal
    adjustable shunt regulators, with specified thermal
    stability over applicable automotive, commercial, and
    military temperature ranges. 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 output impedance of 0.2 О©.
    Active output circuitry provides a very sharp turn-on
    characteristic, making these devices excellent
    replacements for Zener diodes in many applications,
    such as onboard regulation, adjustable power
    supplies, and switching power supplies. The TL432
    device has exactly the same functionality and
    electrical specifications as the TL431 device, but has
    different pinouts for the DBV, DBZ, and PK packages. 1 Reference Voltage Tolerance at 25В°C ...


Family: TL431, TL431A, TL431B, TL432, TL432A, TL432B


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


Package TypePK
Industry STD TermSOT-89
Package QTY1000
CarrierLARGE T&R
Device Marking43
Width (mm)2.5
Length (mm)4.5
Thickness (mm)1.5
Pitch (mm)1.5
Max Height (mm)1.6
Mechanical DataDownload »


Initial Accuracy(Max)2 %
Iout/Iz(Max)100 mA
Iz for Regulation(Min)400 uA
Operating Temperature Range-40 to 125,-40 to 85,0 to 70 C
Package GroupSOT-89
Package Size: mm2:W x L3SOT-89: 18 mm2: 4.095 x 4.5(SOT-89) PKG
Pin/Package3SOT-23, 3SOT-89, 3TO-92, 5SOT-23, 6SC70, 8PDIP, 8SO, 8SOIC, 8TSSOP
Reference VoltageAdjustable
Temp Coeff(Max)92 ppm/ degree C
Temp Coeff(Typ)34 ppm/ degree C
VO2.495 V
VO Adj(Max)36 V
VO Adj(Min)2.495 V

Eco Plan


Application Notes

  • Download » Application Notes PDF, 43 Kb, File published: Jan 12, 2018
    TL431 Pin FMEA
    The TL431and TL432are three-terminaladjustableshuntregulatorswith specifiedthermalstabilityoverautomotivecommercialand militarytemperatureranges.The TL431deviceshavesharpturnontime andcan act as replacementsfor Zenerdiodesin manyapplications.
  • Download » Application Notes PDF, 210 Kb, Revision: A, File published: Jun 13, 2013
    Lead-Acid Charger and LED Driver using TPS5402 (Rev. A)
    The TPS5402 device is a non-synchronous buck regulator with a wide operating range from 3.5 to 28 V.The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor.Frequency-spread spectrum operation is introduced for EMI reduction. TPS5402 supports pulse-skippingmode to enhance the efficiency at light load making this device an ideal pick for applicati
  • Download » Application Notes PDF, 535 Kb, File published: Mar 11, 2009
    Using a portable-power boost converter in an isolated flyback application
  • Download » Application Notes PDF, 542 Kb, File published: Jan 16, 2013
    Compensation Design with TL431 for UCC28600
  • Download » Application Notes PDF, 386 Kb, Revision: A, File published: Jan 16, 2014
    Understanding stability boundary conditions charts in TL431 TL432 Data sheet (Rev. A)
  • Download » Application Notes PDF, 329 Kb, Revision: E, File published: Jul 26, 2005
    Designing Switching Voltage Regulators With the TL494 (Rev. E)
    Designing Switching Voltage Regulators With the TL494
  • Download » Application Notes PDF, 176 Kb, File published: Jul 28, 2017
    Low Cost Bidirectional Current Sensing Using INA181
  • Download » Application Notes PDF, 1.4 Mb, File published: Mar 11, 2009
    Q1 2009 Issue Analog Applications Journal
  • Download » Application Notes PDF, 170 Kb, File published: Sep 1, 2011
    Setting the shunt voltage on an adjustable shunt regulator
  • Download » Application Notes PDF, 237 Kb, File published: Jan 22, 2014
    Low-cost flyback solutions for 10-mW standby power
  • Download » Application Notes PDF, 177 Kb, File published: Nov 5, 2014
    Designing Overcurrent protection for TPL7407L Peripheral Driver
    Microcontroller units (MCUs) are generally limited with lower drive on the I/Os. Most of the applicationsrequiring MCU boards to drive high-current loads need discrete implementation and additional components which use a lot of board space. This board space is called a peripheral driver section. The TPL7407L device is an integrated peripheral driver with seven channel drivers inside. The TPL740

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Series: TL431 (77)

Manufacturer's Classification

  • Semiconductors > Analog and Mixed-Signal > Power Management > Voltage Reference > Shunt Voltage Reference
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