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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% TO92
- Series：AZ431L
- Mfr：Diodes Incorporated
- Package：Cut Tape (CT),Tape & Box (TB)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：18 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92
- Grade：-
- Qualification：-
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Overview
The AZ431LAZTR-E1 is a precision adjustable shunt regulator manufactured by Diodes Incorporated. It functions as a voltage reference and control element in switching power supplies, battery chargers, and linear regulators. The device offers high thermal stability and low output impedance across a wide temperature range. It features an internal 1.25V reference voltage with tight initial accuracy. The component is designed for surface-mount applications using the SOT-23 package.
Feature Summary
- Provides precise adjustable voltage regulation through external resistor networks
- Ensures stable operation with low dynamic output impedance
- Maintains consistent performance across extended industrial temperature ranges
Applications
- Switching power supply feedback loops
- Battery charger circuitry
- Linear regulator references
Procurement Notes
Verify the specific suffix E1 confirms RoHS compliance and halogen-free status according to manufacturer declarations. Confirm the LAZ variant matches required accuracy specifications. Ensure the SOT-23 footprint aligns with PCB design constraints. Cross-reference datasheet revision dates to ensure compatibility with current design standards.
Selection Notes
Select this component when a compact, low-cost shunt regulator is required for voltage referencing. Consider the SOT-23 package size for space-constrained designs. Evaluate the need for adjustable versus fixed reference voltages based on circuit topology requirements.
Part Context
This part belongs to the AZ431 family of programmable precision shunt regulators. These devices are widely used as voltage references in analog and mixed-signal circuits. The family provides a cost-effective solution for regulating voltages in various electronic systems requiring stable reference points.
Replacement Considerations
Check for direct pin-compatible alternatives within the same manufacturer's portfolio that offer similar reference voltages and package types. Verify electrical characteristics match original design requirements before substitution.
