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1.5% accuracy, low-voltage, adjustable precision shunt regulator

Same as: TLV431CLPE3   This part number is identical to the part number listed above. You can only order quantities of the part number listed above.

Inventory: 7,847  

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow N/A for Pkg Type
Quality, reliability
& packaging information

Information included:

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

Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (℃)
TO-92 (LP) | 3 1,000 | BULK
0 to 70
Package | Pins TO-92 (LP) | 3
Package qty | Carrier: 1,000 | BULK
Operating temperature range (℃) 0 to 70
View TI packaging information

Features for the TLV431

  • 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.

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Description for the TLV431

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 0.465
100-249 0.316
250-999 0.244
1,000+ 0.162