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Texas Instruments TLV431AIDBVRG4 — Analog & Data Acquisition

TLV431AIDBVRG4 Adjustable Shunt Voltage Reference, ±1%

MPNTLV431AIDBVRG4
End of Life

Texas Instruments TLV431AIDBVRG4, adjustable shunt voltage reference, ±1% tolerance, 1.24V min output, 15 mA output, 80 µA cathode current, SOT-23-5, -40°C to 85°C.

Texas Instruments TLV431AIDBVRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TLV431AIDBVRG4 specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output6 V
Voltage - output (Min (Fixed))1.24V
Output current15 mA
Current - cathode80 µA
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Tolerance±1%
CaseSC-74A, SOT-753

Product details

Adjustable shunt reference for precision bias and regulation

Output current and cathode current — sizing the bias resistor

The 15 mA maximum output current sets the load the shunt can sink directly. For higher loads, the reference drives an external pass transistor. The 80 µA minimum cathode current defines the bias resistor value: R_bias = (V_in - V_ref) / I_bias, where I_bias must exceed 80 µA to keep the reference in regulation. At 80 µA quiescent, the reference adds negligible power dissipation in battery-powered or energy-harvesting nodes — the bias resistor dominates the loss.

Frequently asked questions

What is the difference between TLV431AIDBVRG4 and TL431AIDBVR?

The TLV431AIDBVRG4 is the low-voltage variant of the TL431 family. Its minimum reference voltage is 1.24 V versus the TL431's 2.495 V. Both are adjustable shunt references in similar packages, but the TLV431 is the right choice when the supply rail is below 2.5 V.