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1% accuracy low-voltage wide-operating current adjustable precision shunt regulator
Buy Directly from Texas Instruments (12808 in Stock)
$0.2200 per unit
Series Information for TLVH431AIDBZR - Texas Instruments


  • feature
    0.25-u2126 Typical Output Impedance
  • feature
    Adjustable Output Voltage, VO = VREF to 18 V
  • feature
    Low-Voltage Operation: Down to 1.24 V
  • feature
    Reference Voltage Tolerances at 25u00b0C u2013 0.5% for B Grade u2013 1% for A Grade u2013 1.5% for Standard Grade
  • feature
    TLVH432 Provides Alternative Pinouts for SOT-23-3 and SOT-89 Packages
  • feature
    Ultra-Small SC-70 Package Offers 40%
  • feature
    Wide Operating Cathode Current Range: 100 u03bcA to 70 mA
  • feature
    u201340u00b0C to +125u00b0C Specifications


The TLVH431 and TLVH432 devices are low-voltage 3-terminal adjustable voltage references, with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 18 V with two external resistors (see Figure 19). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shuntregulator references. When used with an optocoupler, the TLVH431 and TLVH432 devices are ideal voltage references in isolated feedback circuits for 3-V to 3.3-V switchingmode power supplies. They have a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 and TLVH432 devices excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies. The TLVH432 device is identical to the TLVH431 device, but is offered with different pinouts for the 3-pin SOT-23 and SOT-89 packages.


Voltage Reference Type:
Shunt - Adjustable
Product Range:
TLVH431A Series
Reference Voltage:
1.24V to 18V
Initial Accuracy:
Temperature Coefficient:
No. of Pins:

Alternate Descriptions

Avnet America

V-Ref Adjustable 1.24V to 18V 70mA 3-Pin SOT-23 T/R

Avnet Europe

V-Ref Adjustable 1.24V to 18V 70mA 3-Pin SOT-23 T/R

Texas Instruments

1% accuracy low-voltage wide-operating current adjustable precision shunt regulator

Texas Instruments product