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Product details

Parameters

VO (V) 1.24 Reference voltage Adjustable Initial accuracy (Max) (%) 1.5 Rating Catalog VO adj (Min) (V) 1.24 VO adj (Max) (V) 18 Iz for regulation (Min) (uA) 60 Temp coeff (Max) (ppm/ degree C) 138 Operating temperature range (C) -40 to 85, -40 to 125, 0 to 70 Iout/Iz (Max) (mA) 80 open-in-new Find other Shunt voltage references

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 SOT-89 (PK) 3 18 mm² 4.5 x 4.095 open-in-new Find other Shunt voltage references
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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
TL431 ACTIVE Adjustable precision shunt regulator Wider range for Vout (36V max) and Iz (80mA max), as well as different pinouts for SOT23-3 & SOT-89 packages, Vref=2.495, 2% trim accuracy
TLV431 ACTIVE 1.5% accuracy, low-voltage, adjustable precision shunt regulator Vout (12V max) and Iz (80mA max), as well as different pinouts for SOT23-3 & SOT-89 packages, Vref=1.24, 2% trim accuracy
TLVH431 ACTIVE 1.5% low-voltage wide-operating current adjustable precision shunt regulator Wider range for Vout (18V max) and Iz (80mA max), as well as different pinouts for SOT23-3 & SOT-89 packages

Technical documentation

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Type Title Date
* Datasheet TLVH431, TLVH432 Low-Voltage Adjustable Precision Shunt Regulators datasheet (Rev. L) Apr. 14, 2020
Application notes Using the TL431 for Undervoltage and Overvoltage Detection (Rev. A) Dec. 11, 2019
Selection guides 431 Device Nomenclature (Rev. B) Sep. 18, 2019
More literature Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Application notes Setting the shunt voltage on an adjustable shunt regulator Sep. 01, 2011
More literature SLL Precision Reference Product Clip Feb. 23, 2006

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Reference designs

REFERENCE DESIGNS Download
65W (130W Surge) Flyback Power Supply for Laptop Adapter Apps w/85-265VAC Input Reference Design
PMP9208 The PMP9208 is a power adapter reference design for 19.5V output, constant voltage / constant current, 65W flyback power supply with 130W surge capability. Primary side regulation eliminates feedback opto-coupler and provides 1% regulation down to no-load. Average efficiency of > 89% and no load (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBZ) 3 View options
SOT-89 (PK) 3 View options

Ordering & quality

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Videos

Voltage Reference Use Cases

Beyond the scope of signal chain conditioning, see other voltage reference use cases in this informative video.

Posted: 07-Jan-2018
Duration: 05:53

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