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Texas Instruments TLV431AQDBVRQ1 — Analog & Data Acquisition

TLV431AQDBVRQ1 Automotive Shunt Voltage Reference

MPNTLV431AQDBVRQ1
Active

Texas Instruments TLV431AQDBVRQ1, Automotive AEC-Q100 adjustable shunt voltage reference, ±1% tolerance, output range 1.24V to 6V, 15 mA cathode current, -40°C to 125°C, SOT-23-5 package.

$0.6100Ref. price · indicative, final on quote
Texas Instruments TLV431AQDBVRQ1 datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TLV431AQDBVRQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output6 V
Voltage - output (Min (Fixed))1.24V
Output current15 mA
Current - cathode100 µA
Operating temperature-40°C ~ 125°C (TA)
PackageTape & Reel (TR) Cut Tape (CT)
Tolerance±1%
CaseSC-74A, SOT-753

Product details

It is part of TI's Automotive, AEC-Q100 qualified series, which means every unit is manufactured and tested to the automotive reliability standard — not just a commercial-grade part that happens to survive under the hood. The reference is adjustable from a minimum of 1.24V up to 6V, set by two external resistors, with a guaranteed tolerance of ±1% over the full -40°C to 125°C operating range.

Where it fits in a BOM — shunt topology and the cathode current budget

The TLV431 regulates by sinking current through its cathode to ground. The cathode current must stay above 100 µA to maintain regulation and must not exceed 15 mA. The ±1% tolerance holds over temperature.

Lifecycle and sourcing — no LTB clock ticking

The ROHS3 compliance is also confirmed — no conflict with EU or China RoHS directives for the production run.

Packaging and marking — what to verify on incoming inspection

This package is compatible with standard SOT-23-5 footprints, simplifying PCB layout for automotive designs.

Frequently asked questions

What is the difference between TLV431AQDBVRQ1 and TL431?

The TL431 is the higher-voltage sibling with a reference voltage of 2.495V and a maximum output of 36V. The TLV431 operates at 1.24V reference and a 6V maximum — it is designed for low-voltage rails (3.3V and below) where the TL431's 2.5V reference consumes too much headroom.