The KA431AZ is a 3-terminal adjustable shunt regulator manufactured by Fairchild/ON Semiconductor. It's designed to provide precise voltage regulation in a variety of applications. It functions similarly to a Zener diode but offers improved precision and adjustability, making it a versatile component for voltage control.

Applications

• Adjustable power supplies
• Voltage monitoring
• Error amplifiers
• Shunt regulators
• Linear regulators

Features

• Programmable output voltage: Allows for precise voltage adjustment.
• Low dynamic output impedance: Ensures stable voltage regulation.
• Sink current capability: Can sink a significant amount of current.
• Low temperature coefficient: Minimizes voltage drift over temperature.
• Available in various packages: Offers flexibility for different mounting requirements.

Benefits

• Precise voltage regulation: Improves the stability and performance of power supplies.
• Flexible design options: Programmable output voltage allows for customized voltage levels.
• Simplified circuit design: Reduces the number of components required for voltage regulation.
• Improved system reliability: Stable voltage regulation prevents damage to sensitive components.
• Cost-effective solution: Provides a reliable and accurate voltage regulation solution at a low cost.

Technical Specifications

The KA431AZ typically features an output voltage range from Vref (2.5V) to 36V, and a typical output voltage tolerance of ±1%. The cathode current range is typically from 1mA to 100mA. The dynamic output impedance is typically around 0.2 ohms. The operating temperature range usually spans from -40°C to +85°C. It's available in packages like TO-92, SOIC-8, and SOT-23. Consult the manufacturer's datasheet for the specific values and characteristics of the KA431AZ you are using.

The KA431AZ is a reliable and accurate shunt regulator, offering a cost-effective solution for precise voltage control in various electronic circuits.