Skip to main content
Log in
Texas Instruments TLV431ACDBVR — Analog & Data Acquisition

TLV431ACDBVR Shunt Voltage Reference, ±1% Tolerance

MPNTLV431ACDBVR
Active

Texas Instruments TLV431ACDBVR, adjustable shunt voltage reference, ±1% tolerance, 1.24V to 6V output, 15 mA output current, 80 µA cathode current, SOT-23-5 package, 0°C to 70°C.

$0.7600Ref. price · indicative, final on quote
Texas Instruments TLV431ACDBVR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TLV431ACDBVR specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output6 V
Voltage - output (Min (Fixed))1.24V
Output current15 mA
Current - cathode80 µA
Operating temperature0°C~70°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±1%
CaseSC-74A, SOT-753

Product details

Adjustable shunt reference in SOT-23-5 — where the 80 µA cathode current matters

It sinks current from the cathode to anode to regulate the reference pin to 1.24 V nominal, with an external resistor divider setting any output up to 6 V.

80 µA cathode current — the low-power design enabler

The TLV431ACDBVR requires only 80 µA to regulate, which means the bias resistor can be sized for sub-milliampere total supply draw. The 15 mA output current capability handles dynamic loads like an ADC sample-and-hold without droop.

If the board sees a motor drive cabinet, outdoor telecom enclosure, or engine bay, step up to the industrial-grade TLV431BIDBVR (-40°C to 125°C). The SOT-23-5 package is small enough for space-constrained PCBs and rework-friendly — a hot-air station at 300°C with a fine nozzle lifts it clean without lifting adjacent passives.

For dual-sourcing, the industry-standard TL431 family is pin-compatible but check the tolerance grade — the TL431A offers ±1% as well, while the TL431B tightens to ±0.5%.

The SOT-23-5 footprint matches the standard SC-74A land pattern, so no PCB change is needed if swapping between TLV431 and TL431 variants in the same package.

Frequently asked questions

Is TLV431ACDBVR obsolete or end-of-life?

No — the TLV431ACDBVR is listed as active. Texas Instruments continues production with no announced end-of-life. The base product TLV431 is a mature, widely second-sourced family, so supply risk is low.

What is the difference between TLV431ACDBVR and TL431?

Both are adjustable shunt references with the same 1.24 V reference and 6 V max output. The TLV431ACDBVR offers a lower minimum cathode current (80 µA vs 1 mA typical for the standard TL431), making it better for battery-powered designs. The TL431 family includes tighter tolerance grades (0.5%) and wider temperature options, but at higher quiescent draw.

Can TLV431ACDBVR be used as a voltage reference for an ADC?

Yes, for 8-bit to 10-bit ADCs where the ±1% tolerance and 80 µA cathode current are adequate. The 15 mA output can drive the ADC reference input directly. For 12-bit or higher precision, consider the TLV431B with ±0.5% tolerance or a dedicated series reference like the REF3030.