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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.2% 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：0°C ~ 70°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 TL431CDBZRG4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495 V to 36 V and supports a maximum cathode current of 100 mA. The device features an initial accuracy of 2% and a temperature coefficient of 92 ppm/°C. It is housed in a surface-mount SOT-23-3 package with a maximum input voltage rating of 37 V. The component functions as a programmable reference, utilizing a standard three-terminal configuration for circuit integration.
Feature Summary
- Provides stable adjustable voltage reference functionality via a shunt topology
- Ensures precise regulation through specified initial accuracy and low temperature drift
- Supports surface-mount integration within compact electronic designs
Applications
- Precision voltage references in power supply circuits
- On-board voltage monitoring systems
- Comparator threshold setting applications
Procurement Notes
Verify the specific suffix 'RG4' against official Texas Instruments documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the ordering part number matches the exact electrical grade required for the design. Cross-reference datasheet revisions to validate manufacturing specifications before procurement.
Selection Notes
Select this component when a 2% accuracy shunt regulator is required in a small SOT-23 footprint. Confirm that the operating temperature range meets system requirements. Verify that the 100 mA cathode current capability aligns with the load conditions. Compare against other TL431 variants if tighter tolerance or automotive qualification is necessary.
Part Context
This device belongs to the TL431 family of adjustable shunt regulators from Texas Instruments. The family is widely recognized for providing a cost-effective solution for voltage referencing and control in various power management applications. The specific model integrates the standard three-terminal architecture into a compact surface-mount package suitable for modern PCB layouts.
Replacement Considerations
Compatible substitutes include TL431ACDBZR and TL431BCDBZR. These alternatives offer different accuracy grades while maintaining the same pinout and functional characteristics. Verify package compatibility and electrical specifications before substitution.
