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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)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 85°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 TL431BIDBZT is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.5 V to 36 V and features an initial accuracy of ±0.5%. The device supports a maximum cathode current of 100 mA and has a minimum operating current of 700 µA. It utilizes a SOT-23-3 surface-mount package with dimensions of 2.9 mm x 1.6 mm x 1.15 mm. The component functions across a temperature range from -40°C to +85°C.
Feature Summary
- Provides adjustable reference voltage output via external resistor divider
- Ensures high stability with low dynamic impedance characteristics
- Supports direct replacement for Zener diodes in regulation circuits
Applications
- Precision voltage references in power supply designs
- On-line isolation amplifiers
- Programmable output regulators
Procurement Notes
Verify the complete part number including suffixes such as 'G4' or 'DBZT' to ensure correct packaging and compliance status. Confirm that the specific batch matches the required RoHS and REACH directives. Check datasheet revisions for any pinout or electrical parameter updates before finalizing procurement specifications.
Selection Notes
Select this component when ±0.5% initial accuracy is required compared to standard ±1% variants. Ensure the application voltage does not exceed the 36 V maximum limit. Verify that the thermal management strategy accommodates the SOT-23-3 package constraints within the specified operating temperature range.
Part Context
This device belongs to the TL431 family of programmable shunt regulators. It serves as a versatile alternative to traditional Zener diodes, offering superior performance in terms of accuracy and temperature stability. The family is widely used in industrial and consumer electronics for feedback control loops.
Replacement Considerations
Compatible substitutes include TL431AIDBZT and TL431AQDBZT. Verify pin compatibility and tolerance levels when substituting between different accuracy grades within the same package type.
