The APL431LAAI-TRL is a precision adjustable shunt regulator manufactured by Anpec Electronics. This integrated circuit is designed to function as a programmable voltage reference, commonly employed in power supplies, voltage monitors, and error amplifiers. Its precise and stable output voltage, combined with a wide operating current range, makes it suitable for various analog and mixed-signal applications.

Applications

• Switching Power Supplies: Provides accurate voltage regulation in switching power supplies.
• Linear Regulators: Used as a voltage reference in linear regulators.
• Voltage Monitors: Implements voltage monitoring functions to detect over-voltage or under-voltage conditions.
• Error Amplifiers: Functions as an error amplifier in feedback control systems.
• Battery Chargers: Provides precise voltage control in battery charging circuits.

Features

• Adjustable Output Voltage: Output voltage can be adjusted using external resistors.
• Low Temperature Coefficient: Features a low temperature coefficient for stable operation over a wide temperature range.
• Low Output Noise: Delivers low output noise for precise voltage regulation.
• Wide Operating Current Range: Operates over a wide range of cathode current.
• High Precision: Provides a precise and stable voltage reference.

Benefits

• Accurate Voltage Regulation: Ensures accurate and stable voltage regulation in various applications.
• Stable Operation: Low temperature coefficient ensures stable operation over a wide temperature range.
• Reduced Noise: Low output noise improves the performance of sensitive analog circuits.
• Flexible Design: Adjustable output voltage allows for flexible circuit design.
• Cost-Effective Solution: Provides a cost-effective solution for voltage regulation and reference applications.

Additional Details

The APL431LAAI-TRL has a typical reference voltage of 2.5V. The output voltage can be adjusted from Vref to 36V using external resistors. The device is typically available in small surface-mount packages, such as SOT-23 or similar packages. It operates over a wide temperature range and is commonly used in a variety of power management and control applications. Proper bypass capacitors are generally recommended to ensure stability and minimize noise. The thermal characteristics of the device must also be considered during design, particularly at higher operating currents.