The SPX432AM-1-24 is a precision shunt regulator manufactured by Exar Corporation. This device is designed to function as a low voltage adjustable reference and is frequently used in electronic circuits for voltage regulation, voltage monitoring, and error amplification. Its key features include high accuracy and stability, making it suitable for applications that demand precise voltage control.

Applications

• Switching Power Supplies: Used in the feedback loop as a voltage reference to regulate output voltage.
• Linear Regulators: Provides a stable reference voltage for linear regulators, ensuring consistent output.
• Voltage Monitors: Implemented in circuits to monitor voltage levels and trigger alerts or protection mechanisms upon voltage deviation.
• Error Amplifiers: Functions as an error amplifier in control systems, minimizing the difference between actual and desired output.
• Instrumentation: Used in precision measurement instruments to provide accurate voltage referencing.

Features

• Adjustable Output Voltage: Adjustable output voltage from Vref (1.24V) to 18V with external resistors.
• Low Temperature Coefficient: Ensures stable performance across a wide range of temperatures.
• High Accuracy: Provides a tight initial tolerance on the reference voltage.
• Low Output Noise: Minimizes noise in the regulated voltage output.
• Low Dynamic Output Impedance: Good load regulation is achieved by low dynamic output impedance.
• Sink Current Capability: Capable of operating with a wide range of cathode current.

Benefits

• Precise Voltage Regulation: Provides accurate and reliable voltage control in electronic circuits.
• Stable Performance: Maintains consistent performance despite temperature variations and load changes.
• Versatile Application: Suitable for a wide range of voltage regulation and monitoring applications.
• Simplified Circuit Design: Simplifies design by minimizing the number of components.
• Cost-Effective Solution: Offers a high-performance voltage reference at a competitive price.

Additional Details

The SPX432AM-1-24 is generally available in a TO-92 package. The reference voltage is internally set to 1.24V. Its operating temperature range typically spans from -40°C to +85°C. It requires minimal external components for operation, primarily two resistors to set the desired output voltage. This device is a three terminal shunt regulator.