ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.25% TO92-3
- Series：-
- Mfr：STMicroelectronics
- Package：Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-2, TO-92-2 (TO-226AC)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
Download product information
Overview
The TL1431AIZ is an adjustable shunt voltage reference manufactured by STMicroelectronics. It provides a guaranteed temperature-stable reference voltage over the entire operating range, with output voltages programmable between 2.5 V and 36 V using two external resistors. The device supports a wide sink current range from 1 mA to 100 mA and features a typical dynamic impedance of 0.2 Ω. It is designed for surface-mount installation in compact applications requiring precise voltage regulation.
Feature Summary
- Adjustable output voltage settable between 2.5 V and 36 V via external resistors
- Guaranteed temperature stability across the full operating range
- Wide sink current capability supporting 1 mA to 100 mA operation
Applications
- Precision power supply regulation
- Voltage monitoring circuits
- Battery-operated equipment references
Procurement Notes
Verify the specific suffix 'AIZ' against the official STMicroelectronics datasheet to confirm package type, precision grade, and automotive qualification status. Ensure the ordering code matches the required tolerance and thermal specifications for your design. Cross-reference with authorized distributors to confirm component authenticity and traceability.
Selection Notes
Select this component when a stable, adjustable reference is needed within the 2.5 V to 36 V range. Consider the 1 mA to 100 mA current capability and low dynamic impedance for feedback loop stability. Verify that the SMD package and temperature rating align with the target application's environmental constraints and board space limitations.
Part Context
The TL1431AIZ belongs to the TL1431 family of adjustable shunt voltage references from STMicroelectronics. This series is widely used as a precision reference in switching power supplies and linear regulators. The AIZ variant specifically denotes a particular package and performance tier within the broader TL1431 product line, maintaining compatibility with standard shunt regulator topologies.
Replacement Considerations
Compatible substitutes include the TL431AIZ and generic equivalents like KA431 or REF43, provided they match the 2.5 V–36 V range, 100 mA current limit, and SOT-23-5 package dimensions. Verify pinout compatibility and temperature coefficients before substitution.
