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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：0°C ~ 70°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 TL431BCDBVRE4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a cathode voltage range of 2.5 V to 36 V and provides an initial accuracy of ±0.5%. The device supports a maximum cathode current of 100 mA with a minimum operating current of 600 µA. It features a temperature coefficient of 92 ppm/°C and functions across a commercial temperature range of 0°C to +70°C. The component is housed in a five-pin SOT-23 package (SC-74A) and is RoHS compliant.
Feature Summary
- Provides stable reference voltage through adjustable shunt regulation topology
- Ensures high precision with ±0.5% initial accuracy specification
- Operates efficiently with low minimum cathode current requirement
Applications
- Precision voltage references in power supply circuits
- On-board regulation for analog and digital signal conditioning
- Feedback control loops in switching regulators
Procurement Notes
Verify the complete part number including the E4 suffix, which denotes lead-free and RoHS compliance status. Confirm the SOT-23-5 package variant matches the design footprint requirements. Ensure the commercial temperature rating aligns with the operational environment constraints. Cross-reference the manufacturer datasheet for specific marking codes and handling instructions.
Selection Notes
Select this component when a compact surface-mount solution is required for precise voltage referencing. The SOT-23-5 package offers space efficiency compared to larger alternatives. Consider the ±0.5% accuracy tolerance for applications demanding tight voltage stability. Verify that the 0°C to +70°C operating range meets the system's thermal specifications.
Part Context
This device belongs to the TL431 family of programmable shunt regulators from Texas Instruments. It serves as a versatile alternative to discrete zener diodes, offering superior performance in terms of accuracy and temperature stability. The family is widely utilized in power management designs requiring reliable voltage regulation.
Replacement Considerations
The TL431BCDBVR is a direct equivalent replacement. Other compatible variants include the TL431BCDBZRG4 and TL431BQDBVRG4, depending on package and qualification requirements.
