TL431LIBQDBZRQ1

$0.78

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

SKU:f0588ca5b938 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：Automotive
Qualification：AEC-Q100

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TL431LIBQDBZRQ1

Overview

The TL431LIBQDBZRQ1 is an automotive-grade adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495V to 36V and features an initial accuracy of ±0.5%. The device supports a maximum cathode current of 100mA and maintains operation across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23-3 surface-mount format, it meets AEC-Q100 qualification standards for automotive applications.

Feature Summary

Automotive-grade reliability with AEC-Q100 qualification
High bandwidth performance suitable for fast transient response
Low quiescent current consumption for power efficiency
Adjustable output voltage capability via external resistors

Applications

Precision voltage reference circuits in automotive systems
Programmable output regulators for vehicle electronics
Feedback control loops in DC-DC converters
Over-voltage protection mechanisms in automotive power supplies

Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and automotive qualification status. Confirm that the specific revision matches design requirements for tolerance and thermal performance. Cross-reference datasheet specifications against application constraints before finalizing procurement decisions.

Selection Notes

Select this component when high accuracy and low noise are required in space-constrained automotive designs. The SOT-23-3 package offers a small footprint compared to larger alternatives. Ensure the operating temperature range aligns with the intended environment and that the input voltage does not exceed the maximum rating.

Part Context

This device belongs to the TL431 family of programmable shunt regulators. The 'LI' designation indicates specific performance characteristics regarding bandwidth and current consumption. The 'Q1' suffix confirms its compliance with automotive quality standards, distinguishing it from commercial variants.