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TL431QDBZR

Adjustable precision shunt regulator

Three-terminal shunt regulator family with an output voltage range between

Vref = 2.495 V and 36 V, to be set by two external resistors.

Reference voltage

tolerance (Vref)

Temperature range (Tamb)

Pinning configuration

0 ° C to 70 °C

-40 ° C to 85 °C

-40 ° C to 125 °C

2.0 %

TL431CDBZR

TL431IDBZR

TL431QDBZR

normal pinning

TL431FDT

normal pinning

TL431MFDT

mirrored pinning

1.0 %

TL431ACDBZR

TL431AIDBZR

TL431AQDBZR

normal pinning

TL431AFDT

normal pinning

TL431AMFDT

mirrored pinning

0.5 %

TL431BCDBZR

TL431BIDBZR

TL431BQDBZR

normal pinning

TL431BFDT

normal pinning

TL431BMFDT

mirrored pinning

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
TL431QDBZR TL431QDBZR,215 935288018215 SOT23 Order product

Features and benefits

  • Programmable output voltage up to 36 V

  • Three different reference voltage tolerances:

    • Standard grade: 2 %

    • A-Grade: 1 %

    • B-Grade: 0.5 %

  • Typical temperature drift: 9 mV (in a range of 0 °C up to 70 °C)

  • Low output noise

  • Typical output impedance: 0.2 Ω

  • Sink current capability: 1 mA to 100 mA

  • AEC-Q100 qualified (grade 1)

Applications

  • Shunt regulator

  • Precision current limiter

  • Precision constant current sink

  • Isolated feedback loop for Switch Mode Power Supply (SMPS)

Parametrics

Type numberPackage versionPackage nameSize (mm)Pinning configurationTamb (°C)Vref tolerance (%)Vref (V)VKA (V)IK (mA)
TL431QDBZRSOT23SOT232.9 x 1.3 x 1normal-40~12522.49536100

PCB Symbol, Footprint and 3D Model

Model NameDescription

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
TL431QDBZRTL431QDBZR,215
( 9352 880 18215 )
ActiveCC%

(SOT23)
SOT23REFLOW_BG-BD-1
WAVE_BG-BD-1
SOT23_215

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
TL431QDBZRTL431QDBZR,215TL431QDBZR
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
TL431_FAMAdjustable precision shunt regulatorData sheet2019-01-14
TL431QDBZR_Nexperia_Product_ReliabilityTL431QDBZR Nexperia Product ReliabilityQuality document2023-04-04
TL431QDBZR_Nexperia_Product_QualityTL431QDBZR Nexperia Product QualityQuality document2019-05-20
TL431TL431 SPICE modelSPICE model2020-10-26
SOT23_215Reel pack for SMD, 7"; Q3/T4 product orientationPacking information2020-04-29
REFLOW_BG-BD-1Reflow soldering profileReflow soldering2021-04-06
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

Support

If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.

Models

File nameTitleTypeDate
TL431TL431 SPICE modelSPICE model2020-10-26

PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
TL431QDBZRTL431QDBZR,215935288018215SOT23_215- Order product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.