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Texas Instruments TLV431BCDBZRG4 — Analog & Data Acquisition

TLV431BCDBZRG4 Shunt Reference, ±0.5%, SOT-23-3

MPNTLV431BCDBZRG4
End of Life

Texas Instruments TLV431BCDBZRG4 adjustable shunt voltage reference, ±0.5% tolerance, 15 mA output, 100 µA cathode current, SOT-23-3 package, 0°C to 70°C.

$1.0000Ref. price · indicative, final on quote
Texas Instruments TLV431BCDBZRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TLV431BCDBZRG4 specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Reference typeShunt
Voltage - output6 V
Voltage - output (Min (Fixed))1.24V
Output current15 mA
Current - cathode100 µA
Operating temperature0°C~70°C(TA)
PackageTape & Reel (TR)
Tolerance±0.5%
CaseTO-236-3, SC-59, SOT-23-3

Product details

Adjustable shunt reference with ±0.5% initial tolerance

The Texas Instruments TLV431BCDBZRG4 is a low-voltage, adjustable precision shunt regulator in a three-pin SOT-23-3 package. It operates as a shunt reference with a programmable output from 1.24 V up to 6 V, set by two external resistors. The B-grade suffix selects the tighter ±0.5% initial tolerance bin, which is the primary spec that determines voltage accuracy in the application.

Output drive and cathode bias headroom

Rated for 15 mA continuous output current and a minimum cathode current of 100 µA, this part covers the typical biasing range for a shunt reference in a switching power supply feedback divider or an adjustable linear regulator. The 100 µA cathode floor sets the minimum bias resistor value for a given supply rail — below that the reference drops out of regulation.

SOT-23-3 footprint and tape-and-reel delivery

Frequently asked questions

What is the accuracy of TLV431BCDBZRG4?

The initial tolerance is ±0.5%, which is the B-grade bin of the TLV431 family. This sets the worst-case voltage deviation from the programmed output at 25 °C before temperature drift and aging are factored in.