TL431AMFDT

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
TL431AMFDT TL431AMFDT,215 935293278215 SOT23 Order product

Features

  • 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)

Target 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)
TL431AMFDTSOT23SOT232.9 x 1.3 x 1mirrored-40 to 12512.49536100

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
TL431AMFDTTL431AMFDT,215
( 9352 932 78215 )
ActiveAV%

(SOT23)
SOT23Reel 7" Q3/T4

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
TL431AMFDTTL431AMFDT,215TL431AMFDT521.02.414.15E811
Quality and reliability disclaimer

Documentation (5)

File nameTitleTypeDate
TL431_FAMAdjustable precision shunt regulatorData sheet2019-01-14
TL431AMFDT_Nexperia_Product_ReliabilityTL431AMFDT Nexperia Product ReliabilityQuality document2019-04-29
TL431AMFDT_Nexperia_Product_QualityTL431AMFDT Nexperia Product QualityQuality document2019-05-20
SOT23_215Tape reel SMD; standard product orientation 12NC ending 215Packing2012-11-16
SOT23plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm bodyOutline drawing2019-01-09

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.

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
TL431AMFDTTL431AMFDT,215935293278215Reel 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.