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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)：2.5V
- 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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Overview
The ATL431LIBQDBZRQ1 is an automotive-grade, high-bandwidth, low-IQ programmable shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.5 V to 36 V with an initial accuracy of 0.5% and a temperature coefficient of 66 PPM/C. The device supports a maximum cathode current of 15 mA and functions between -40°C and +125°C. Packaged in a SOT-23-3 surface-mount case, it meets AEC-Q100 standards for automotive applications.
Feature Summary
- Automotive qualification compliant with AEC-Q100 standards
- High bandwidth performance suitable for fast transient response
- Low quiescent current operation for energy efficiency
- Precision adjustable reference with 0.5% initial accuracy
Applications
- Automotive power supply regulation circuits
- Battery management systems requiring precise voltage monitoring
- Industrial control systems operating in harsh thermal environments
- Programmable shunt regulator implementations in compact PCB layouts
Procurement Notes
Verify the complete part number including suffixes to ensure correct packaging and automotive grade specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference datasheet revisions to validate parameter consistency against design requirements. Ensure sourcing channels provide genuine components with traceability records.
Selection Notes
Select this component when automotive reliability and high bandwidth are critical alongside low power consumption. The SOT-23-3 package suits space-constrained designs requiring precision voltage referencing. Compare temperature coefficients and accuracy requirements against alternative TL431 variants to ensure optimal performance for specific circuit topologies.
Part Context
This device belongs to the ATL431LI series of programmable shunt regulators designed specifically for automotive environments. It serves as a high-performance alternative to standard TL431 devices, offering improved bandwidth and lower quiescent current while maintaining compatibility with common reference circuit configurations.
Replacement Considerations
ATL431LIBIDBZR is a non-automotive equivalent with similar electrical characteristics but lacks AEC-Q100 certification. TL431AQDBZRQ1 offers automotive qualification but differs in accuracy and bandwidth specifications.
