The AZ431AN-A is a precision adjustable shunt regulator manufactured by BCD Semiconductor Manufacturing Limited. This versatile component acts like a Zener diode with a precisely controllable breakdown voltage. It’s commonly used as a voltage reference in power supplies, voltage monitors, and error amplifiers. Due to its 'END-OF-LIFE' status, designers need to verify its availability and look for replacements for new designs.

Applications

• Switching Power Supplies
• Linear Regulators
• Voltage Monitors
• Error Amplifiers
• Adjustable Voltage References
• Battery Chargers

Features

• Adjustable Output Voltage: Can be set from Vref (2.5V) to 36V with external resistors.
• Low Output Noise
• Low Dynamic Output Impedance
• Sink Current Capability: 100mA
• Temperature Compensated
• Off-State Output Voltage: 36V

Benefits

• Provides a precise and stable voltage reference for various applications.
• Offers design flexibility due to its adjustable output voltage capability.
• Enhances the performance of power supplies and regulators with its low noise and impedance characteristics.
• Simple to use, requiring only a few external components.
• Reduces system cost due to its affordable price.

Additional Details

The AZ431AN-A is usually supplied in a TO-92 package, making it suitable for through-hole mounting. External resistors are needed to set the desired output voltage. The datasheet includes equations and guidelines for selecting these resistors. The device is designed to operate over a specific temperature range. Since it's marked as 'END-OF-LIFE', verifying inventory with BCD Semiconductor or distributors and seeking replacement parts for new applications is recommended. Always refer to the datasheet for detailed specifications and application information. It's also available in surface mount packages.