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0.5% accuracy, low-voltage, adjustable precision shunt regulator

Same as: TLV431BCDBZTG4   This part number is identical to the part number listed above. You can only order quantities of the part number listed above.



Qty Price (USD)
1-99 1.163
100-249 0.895
250-999 0.659
1,000+ 0.471

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU, NIPDAUAG
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information info-circle

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins SOT-23 (DBZ) | 3
Package qty | Carrier: 250 | SMALL T&R
Operating temperature range (°C) 0 to 70
View TI packaging information

Features for the TLV431B

  • Low-Voltage Operation, VREF = 1.24 V
  • Adjustable Output Voltage, VO = VREF to 6 V
  • Reference Voltage Tolerances at 25°C
    • 0.5% forTLV431B
    • 1% for TLV431A
    • 1.5% forTLV431
  • Typical Temperature Drift
    • 4 mV (0°C to 70°C)
    • 6 mV (–40°C to 85°C)
    • 11 mV (–40°C to 125°C)
  • Low Operational Cathode Current, 80 µA Typical
  • 0.25-Ω Typical Output Impedance
  • Ultra-Small SC-70 Package Offers 40% Smaller Footprint Than SOT-23-3
  • See TLVH431 and TLVH432 for:
    • WiderVKA (1.24 V to 18 V) and IK (80mA)
    • Additional SOT-89 Package
    • Multiple Pinouts for SOT-23-3and SOT-89 Packages
  • On Products Compliant to MIL-PRF-38535,
    All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters.

Description for the TLV431B

The TLV431 device is a low-voltage 3-terminal adjustable voltage reference with specifiedthermal stability over applicable industrial and commercial temperature ranges. Output voltage canbe set to any value between VREF (1.24 V) and 6 V with two externalresistors (see the Parameter Measurement Information section). These devicesoperate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulatorreferences.

When used with an optocoupler, the TLV431 device is an ideal voltage reference inisolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. These devices have atypical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turnoncharacteristic, making them excellent replacements for low-voltage Zener diodes in manyapplications, including on-board regulation and adjustable power supplies.



Qty Price (USD)
1-99 1.163
100-249 0.895
250-999 0.659
1,000+ 0.471

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships  tube or tray  devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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