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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- 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：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The TL431BIDBVRG4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a cathode voltage range of 2.495V to 36V and provides an initial accuracy of ±0.5%. The device supports a maximum cathode current of 100 mA with a minimum operating current of 700 µA. It functions reliably across a temperature range of -40°C to 85°C. The component is housed in a surface-mount SOT-23-5 package, designed for compact power management applications requiring stable voltage reference.
Feature Summary
- Provides high-precision voltage regulation with tight initial accuracy tolerance
- Features adjustable output capability spanning from the internal reference threshold up to the maximum supply limit
- Designed for surface-mount integration in space-constrained electronic assemblies
Applications
- Precision voltage reference circuits
- Linear and switching power supply feedback loops
- Portable equipment power management systems
Procurement Notes
Verify the specific suffix 'RG4' indicates RoHS compliance and green material status as per manufacturer documentation. Confirm the component status is End-of-Life (EOL) and plan for lifecycle management. Ensure the ordering part number matches the required package and temperature grade specifications exactly before procurement.
Selection Notes
Select this component when precise voltage referencing is required in low-profile surface-mount designs. Consider the ±0.5% accuracy and industrial temperature range suitability. Evaluate the SOT-23-5 footprint constraints against available board space. Verify that the 100 mA cathode current capability meets the load requirements of the target application circuit.
Part Context
This device belongs to the TL431 family of programmable shunt regulators. It serves as a three-terminal reference diode alternative, offering superior performance over fixed zener diodes. The family is widely utilized in power supplies and battery-operated devices where accurate voltage control is critical for system stability and efficiency.
Replacement Considerations
Direct replacement options include the TL431BIDBVR. Cross-vendor alternatives such as the AS431BKTR-G1 or TL431BW5-7 may be considered if pin compatibility and electrical specifications align with the original design requirements.
