Product details

VO (V) 1.24 Reference voltage Adjustable Initial accuracy (Max) (%) 1.5 VO adj (Min) (V) 1.24 VO adj (Max) (V) 18 Iz for regulation (Min) (uA) 60 Rating Catalog 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
VO (V) 1.24 Reference voltage Adjustable Initial accuracy (Max) (%) 1.5 VO adj (Min) (V) 1.24 VO adj (Max) (V) 18 Iz for regulation (Min) (uA) 60 Rating Catalog 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
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 SOT-89 (PK) 3 18 mm² 4.5 x 4.095
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Technical documentation

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

Design & development

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Evaluation board

ATL431EVM-001 — ATL431 adjustable shunt regulator evaluation module

The ATL431EVM-001 evaluation module (EVM) features the functionality and adjustability of the ATL431 by letting you program the cathode voltage with various resistor values. You can also set the cathode current using the various resistors in series with the supply. (...)

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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

PMP9208 — 65W (130W Surge) Flyback Power Supply for Laptop Adapter Apps w/85-265VAC Input Reference Design

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 (...)
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SOT-23 (DBZ) 3 View options
SOT-89 (PK) 3 View options

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