The AZ431AZ-AE1 is a precision adjustable shunt voltage reference manufactured by Diodes Incorporated. It is designed to provide a stable reference voltage for various applications, including power supplies, voltage regulation, and signal conditioning. This device is particularly valued for its accuracy, low temperature coefficient, and versatility in circuit design.

## Overview

The AZ431AZ-AE1 is a three-terminal adjustable shunt voltage reference that can be configured to provide a reference voltage from 1.25V to 36V. It operates by maintaining a constant output voltage across its terminals, making it an essential component in feedback loops for voltage regulation and control systems.

## Key Features

1. Adjustable Output Voltage: The output voltage can be set between 1.25V and 36V, allowing for flexibility in various applications.

2. High Accuracy: The device features a typical reference voltage accuracy of ±1%, ensuring reliable performance in precision applications.

3. Low Temperature Coefficient: The AZ431AZ-AE1 has a low temperature coefficient of 50 ppm/°C, which helps maintain output stability across a wide temperature range.

4. Wide Operating Current Range: The device can operate with a wide range of output currents, typically from 1 mA to 100 mA, making it suitable for different load conditions.

5. Fast Response Time: The AZ431AZ-AE1 has a fast response time, which is crucial for applications requiring quick adjustments to changes in load or input voltage.

6. Compact Package: It is available in a small surface-mount package (SOT-23), which is ideal for space-constrained designs.

7. Low Noise: The device exhibits low noise characteristics, making it suitable for sensitive applications where signal integrity is critical.

## Electrical Specifications

- Reference Voltage (Vref): 1.25V (typical)
- Adjustable Output Voltage Range: 1.25V to 36V
- Reference Voltage Accuracy: ±1% (at 25°C)
- Temperature Coefficient: 50 ppm/°C (typical)
- Operating Current Range: 1 mA to 100 mA
- Dynamic Output Impedance: 0.2 Ω (typical)
- Package Type: SOT-23

## Application Areas

The AZ431AZ-AE1 is suitable for a wide range of applications, including:

- Power Supply Regulation: Used in linear power supplies to provide a stable reference voltage for feedback control.
- Voltage Regulation Circuits: Ideal for designing adjustable voltage regulators in various electronic devices.
- Signal Conditioning: Employed in signal processing applications where precise voltage references are required.
- Battery Management Systems: Utilized in battery chargers and management systems to monitor and regulate voltage levels.

## Conclusion

The AZ431AZ-AE1 from Diodes Incorporated is a highly versatile and accurate adjustable shunt voltage reference. Its wide output voltage range, high accuracy, and low temperature coefficient make it an excellent choice for designers seeking reliable voltage regulation solutions. Whether in power supply circuits, signal conditioning applications, or battery management systems, the AZ431AZ-AE1 provides the performance and flexibility needed in modern electronic designs. Its compact size and low noise characteristics further enhance its suitability for a variety of applications, making it a valuable component in any engineer%27s toolkit.