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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),Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：6 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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Overview
The TLV431BQDBZR is an automotive-grade, low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 36 V and provides an adjustable output voltage from 1.24 V to 36 V. The device features an initial accuracy of 0.5% and a temperature coefficient of 138 PPM/°C. It supports a maximum cathode current of 15 mA and functions reliably across an operating temperature range of -40°C to +125°C. Packaged in a compact SOT-23-3 surface-mount case, it meets AEC-Q100 standards for automotive applications.
Feature Summary
- Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
- Adjustable output voltage capability spanning from 1.24 V up to the supply rail limit.
- High precision performance characterized by 0.5% initial accuracy and low temperature drift.
Applications
- Portable equipment power supply regulation
- DC-to-DC converter feedback loops
- Power supply overvoltage protection circuits
Procurement Notes
Verify the specific suffix 'DBZR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the AEC-Q100 automotive grade designation aligns with the target application's environmental stress requirements. Ensure the SOT-23-3 package dimensions fit the designated footprint on the printed circuit board layout.
Selection Notes
Select this component when designing systems requiring automotive-grade voltage references with adjustable output ranges. It is suitable for space-constrained designs due to its small SOT-23-3 package. Consider the 15 mA cathode current limit when determining load requirements for the shunt regulation topology.
Part Context
This part belongs to the TLV431 family of adjustable shunt regulators, specifically tailored for automotive electronics. The 'Q' designation indicates automotive qualification, while 'B' denotes the improved accuracy variant compared to standard versions. It serves as a drop-in replacement for legacy TL431 devices in many automotive power management designs.
Replacement Considerations
Direct substitutes include TLV431BQDBZT for tray packaging or TLV431BQDBZRQ1 for green packaging variants. Non-automotive equivalents like TLV431IDBZR may be considered if automotive certification is not required.
