TLV431AFTA

$0.54

Description：IC VREF SHUNT ADJ 1% SOT23-3
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:8a0db676acca Category: Voltage Reference Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 1% SOT23-3
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：1.24V
Voltage - Output (Max)：18 V
Current - Output：15 mA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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TLV431AFTA

Overview

The TLV431AFTA is a three-terminal adjustable shunt regulator from Diodes Incorporated, housed in an SOT-23 package. It provides a reference voltage of 1.24V with an initial tolerance of 1%. The device supports an operating ambient temperature range from -40°C to +125°C and features a typical temperature drift of 4mV between 0°C and +70°C. It requires a minimum cathode current of 80µA for regulation and can sink up to 15mA. The output voltage is adjustable from the reference level up to 18V using external resistors.

Feature Summary

Offers excellent temperature stability across a wide industrial temperature range.
Provides low-voltage operation with a precise 1.24V internal reference.
Features high output current handling capability for shunt regulation applications.

Applications

Replacing zener diodes where improved performance is required
Isolated feedback loops for switch mode power supplies
Precision constant current sinks

Procurement Notes

Verify that the specific part number TLV431AFTA matches the required A-grade 1% tolerance specification. Confirm the SOT-23 package type aligns with the PCB footprint design. Ensure the application circuit maintains the recommended cathode current limits to guarantee stable regulation within the specified temperature range.

Selection Notes

Select this component when a cost-effective, low-voltage shunt regulator is needed with a 1% accuracy grade. It is suitable for designs requiring operation up to 125°C ambient temperature. Consider the 15mA maximum sink current limit when designing the series resistor network to ensure the device operates within its safe operating area under all load conditions.

Part Context

This device belongs to the TLV431 family of adjustable shunt regulators manufactured by Diodes Incorporated. The 'A' suffix denotes the 1% initial tolerance grade, while 'FTA' indicates the SOT-23 surface-mount packaging configuration. It serves as a direct functional replacement for standard Zener diodes in precision voltage reference and regulation circuits.