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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% TO92-3
- Series：-
- Mfr：onsemi
- Package：Tape & Box (TB)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-25°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The FAN431AZXA is a three-terminal programmable shunt regulator manufactured by onsemi. It provides an adjustable output voltage ranging from approximately 2.5V to 36V using two external resistors. The device features a typical dynamic output impedance of 0.2Ω and sinks current between 1mA and 100mA. It operates over a temperature range of -25°C to +85°C with a typical temperature coefficient of 50ppm/°C. Packaged in TO-92, it serves as a stable reference for power management circuits.
Feature Summary
- Programmable output voltage settable via external resistors
- Low dynamic output impedance for stable regulation
- Fast turn-on response characteristic
- Temperature compensated operation
Applications
- Replacement for Zener diodes in precision voltage references
- Adjustable power supply feedback loops
- Voltage reference sources for analog circuits
Procurement Notes
Verify the manufacturer designation carefully, as the suffix MATSUSHI indicates historical Fairchild Semiconductor production. Confirm RoHS compliance status and package variant (TO-92) against current datasheets. Ensure the component meets the required operating temperature range and electrical specifications for your specific design before integration.
Selection Notes
Select this component when a low-cost, adjustable shunt regulator is required. It is suitable for applications needing a stable reference voltage up to 36V. Consider the thermal stability and low noise characteristics if used in sensitive analog signal paths. Verify that the sink current capability aligns with the circuit requirements.
Part Context
This part belongs to the FAN431 family of programmable shunt regulators. It is functionally similar to other industry-standard adjustable references but offers specific performance metrics like low dynamic impedance. The device is designed for general-purpose voltage regulation tasks where precise voltage setting is necessary.
Replacement Considerations
Direct substitutes include TL431 variants and KA431 series components. Verify pinout compatibility and electrical parameters such as reference voltage accuracy and maximum sink current when replacing.
