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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.2% 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 ~ 125°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 TL431QDBVRG4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495 V to 36 V and features an initial accuracy of ±2.2%. The device supports a maximum cathode current of 100 mA with a minimum operating current of 1 mA. It exhibits a temperature coefficient of 92 PPM/°C and functions across a wide temperature range from -40°C to +125°C. The component is housed in a SOT-23-5 surface-mount package and complies with RoHS standards.
Feature Summary
- Provides stable reference voltage for precision circuit applications
- Capable of regulating output voltage across a wide adjustable range
- Designed for robust operation under extended industrial temperature conditions
Applications
- Precision power supply regulation
- Voltage reference circuits
- Battery chargers
Procurement Notes
Verify the specific suffix G4 indicates lead-free and halogen-free compliance as per manufacturer specifications. Confirm the SOT-23-5 package type matches the target PCB footprint requirements. Ensure the automotive-grade designation aligns with the intended application environment standards. Cross-reference the datasheet revision date to guarantee compatibility with existing design documentation.
Selection Notes
Select this component when a high-accuracy adjustable reference is required in a compact surface-mount form factor. The ±2.2% initial accuracy suits applications demanding tighter tolerance than standard shunt regulators. Consider the 100 mA current capability for driving moderate loads directly. Verify that the 36 V maximum input voltage exceeds the system's peak operating levels.
Part Context
This part belongs to the TL431 family of programmable shunt regulators, widely used as voltage references and error amplifiers. The Q-series designation typically denotes automotive-grade qualification, ensuring reliability in harsh environments. The DBV package variant offers a small footprint suitable for space-constrained portable and industrial electronics designs.
Replacement Considerations
Direct substitutes include TL431QDBVR and TL431QDBVRE4, which share identical electrical characteristics and pinouts. Verify that any replacement maintains the same SOT-23-5 package dimensions and thermal performance ratings.
