TS3431ILT

$0.38

Description：IC VREF SHUNT ADJ 2% SOT23-3
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:de5566a5f903 Category: Voltage Reference Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 2% SOT23-3
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：1.24V
Voltage - Output (Max)：24 V
Current - Output：100 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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TS3431ILT

Overview

The TS3431ILT is an adjustable shunt voltage reference manufactured by STMicroelectronics, housed in a SOT-23-3 surface-mount package. It provides an output voltage range from 1.24 V to 24 V, set via external resistors. The device features an initial accuracy of 2% at 25 °C and a temperature coefficient of 100 PPM/°C. It supports a sink current between 400 µA and 100 mA, with a maximum input voltage of 25 V. Operating temperatures range from -40 °C to +125 °C.

Feature Summary

Adjustable output voltage capability ranging from 1.24 V to 24 V using external resistor networks
Industrial temperature stability guaranteed across the full operating range
High sink current capability supporting loads up to 100 mA

Applications

Low-voltage Switch Mode Power Supplies (SMPS)
Precision voltage regulation circuits
Battery-powered equipment requiring stable references

Procurement Notes

Verify the specific suffix 'I' confirms the 2% initial accuracy grade and industrial temperature rating (-40°C to +125°C). Confirm the SOT-23-3 package type matches the design footprint. Ensure the application circuit respects the 100 mA maximum cathode current limit and the 25 V maximum input voltage specification to prevent device damage.

Selection Notes

Select this component when space-saving SOT-23-3 packaging is required alongside adjustable reference functionality. It serves as a performance-compatible alternative to industry-standard TL431 devices. Choose this part for designs needing a 2% accuracy tolerance rather than tighter grades like ±1% or ±0.5%. Verify that the 100 ppm/°C temperature coefficient meets the system's thermal stability requirements.

Part Context

The TS3431 series includes variants with different accuracy grades, such as the TS3431AILT (±1%) and TS3431BILT (±0.5%). The TS3431 family is designed for low-voltage applications and offers flexibility through its adjustable output range. It integrates a precision bandgap reference and error amplifier within a compact three-terminal configuration suitable for dense PCB layouts.