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TL431BMFDT

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
TL431BMFDT TL431BMFDTVL 935293279235 SOT23 Order product
TL431BMFDT TL431BMFDT,215 935293279215 SOT23 Order product
TL431BMFDT/8 TL431BMFDT/8VL 935690762235 SOT23 Order product
TL431BMFDT/8 TL431BMFDT/8R 935690762215 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 configurationTambVref tolerance (%)Vref (V)VKA (V)IK (mA)
TL431BMFDTSOT23SOT232.9 x 1.3 x 1mirrored-40~1250.52.49536100

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
TL431BMFDTTL431BMFDTVL
( 9352 932 79235 )
ActiveAW%

(SOT23)
SOT23Reel 11" Q3/T4, LargePack
TL431BMFDT,215
( 9352 932 79215 )
ActiveAW%Reel 7" Q3/T4
TL431BMFDT/8TL431BMFDT/8VL
( 9356 907 62235 )
ActiveAW%

(SOT23)
SOT23Reel 11" Q3/T4, LargePack
TL431BMFDT/8R
( 9356 907 62215 )
ActiveAW%Reel 7" Q3/T4

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
TL431BMFDTTL431BMFDTVLTL431BMFDT11
TL431BMFDTTL431BMFDT,215TL431BMFDT11
TL431BMFDT/8TL431BMFDT/8VLTL431BMFDT/811
TL431BMFDT/8TL431BMFDT/8RTL431BMFDT/811
Quality and reliability disclaimer

Documentation (4)

File nameTitleTypeDate
TL431_FAMAdjustable precision shunt regulatorData sheet2019-01-14
TL431BMFDT_Nexperia_Product_ReliabilityTL431BMFDT Nexperia Product ReliabilityQuality document2021-03-19
TL431BMFDT_Nexperia_Product_QualityTL431BMFDT Nexperia Product QualityQuality document2019-05-20
TL431TL431 SPICE modelSPICE model2020-10-26

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

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
TL431BMFDTTL431BMFDTVL935293279235Reel 11" Q3/T4, LargePackOrder product
TL431BMFDTTL431BMFDT,215935293279215Reel 7" Q3/T4Order product
TL431BMFDT/8TL431BMFDT/8VL935690762235Reel 11" Q3/T4, LargePackOrder product
TL431BMFDT/8TL431BMFDT/8R935690762215Reel 7" Q3/T4Order 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.