TL431LIBQDBZR

$0.18

Description：IC VREF SHUNT ADJ 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:7193b296e9b5 Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
Voltage - Output (Max)：36 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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TL431LIBQDBZR

Overview

The TL431LIBQDBZR is an automotive-grade, adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 36 V and features an initial accuracy of 0.5%. The device exhibits a temperature coefficient of 66 PPM/°C and supports a maximum cathode current of 15 mA with a minimum operating current of 80 µA. Designed for robust performance, it functions across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23-3 surface-mount format, this component integrates high bandwidth and low quiescent current characteristics suitable for demanding power management applications.

Feature Summary

Automotive qualification compliant with AEC-Q100 standards for enhanced reliability
High bandwidth capability supporting fast transient response requirements
Low quiescent current design optimizing efficiency in battery-powered systems

Applications

Automotive power supply regulation circuits
Precision voltage monitoring systems
Battery-operated equipment requiring low standby current

Procurement Notes

Verify the complete part number including the Q1 suffix to confirm automotive grade status. Ensure the DBZR suffix matches the required SOT-23-3 tape and reel packaging configuration. Cross-reference the specific datasheet revision to confirm pinout compatibility and electrical parameter tolerances before finalizing procurement orders.

Selection Notes

Select this component when automotive reliability and low power consumption are critical. The 0.5% initial accuracy provides tighter tolerance than standard industrial variants. Verify that the 15 mA maximum cathode current meets the load requirements, as higher current options exist in other TL431 series families.

Part Context

This device belongs to the ATL431LI family, representing the automotive-qualified version of the widely used TL431 adjustable shunt regulator. It shares functional similarities with the TL431BQDBZR but offers optimized low-current performance. The ATL431LI series is specifically engineered to meet the stringent environmental and longevity standards required for modern automotive electronic control units.