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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.2% SOT23-5
- 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：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The TL431IDBVT is a 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 2.495 V to 36 V. The device features an initial accuracy of ±2.2% and supports a maximum cathode current of 100 mA. It is housed in a compact SOT-23-5 surface-mount package with dimensions of 2.9 mm x 1.6 mm x 1.15 mm. The component functions reliably across an operating temperature range of -40 °C to +85 °C.
Feature Summary
- Provides precise voltage regulation through an adjustable reference threshold.
- Operates as a three-terminal parallel topology shunt regulator.
- Supports surface-mount installation for automated assembly processes.
Applications
- Precision voltage references in power supply circuits
- On-board local voltage regulation
- Comparator replacement in control loops
Procurement Notes
Verify the specific suffix 'ID' confirms the ±2.2% initial accuracy grade, distinct from standard or A-grade variants. Confirm the 'DBVT' designation matches the SOT-23-5 package type and tape-and-reel delivery format. Ensure compatibility with RoHS3 compliance requirements for the target manufacturing environment.
Selection Notes
Select this part when a low-cost, high-accuracy shunt regulator is required for voltages up to 36 V. The ±2.2% tolerance suits applications demanding tighter regulation than standard TL431 versions but without the cost of higher-grade alternatives. The SOT-23-5 package is ideal for space-constrained PCB layouts requiring surface-mount technology.
Part Context
This component belongs to the TL431 family of programmable shunt regulators. It serves as a versatile reference element in linear and switching power supplies. The device integrates a bandgap reference and error amplifier to maintain stable output voltage based on the external resistor divider network connected to the reference pin.
Replacement Considerations
Compatible substitutes include TL431ACDBVT and TL431IDBVR. Verify that alternative packages match the SOT-23-5 footprint and that accuracy grades align with circuit requirements.
