Product Overview: TL431AC by NXP

The TL431AC from NXP Semiconductors is a versatile, precision programmable reference voltage source that is widely used in numerous electronic applications. This three-terminal adjustable shunt regulator is renowned for its ease of use and flexibility, making it an ideal component for voltage regulation and precision current limiting designs.

With a default reference voltage of 2.5V, the TL431AC can be adjusted over a broad voltage range from 2.5V to 36V by using two external resistors. This feature enables designers to tailor the output voltage to meet specific circuit requirements, providing a high degree of customization for a variety of applications.

Key Features:

• Adjustable Output Voltage: The TL431AC offers an adjustable output voltage range from 2.5V to 36V, accommodating a wide array of design needs.
• Low Output Noise: This device is designed to produce a low noise output, which is crucial for sensitive electronic applications where signal integrity is paramount.
• High Stability: The voltage reference exhibits excellent thermal stability and can maintain consistent performance over varying temperatures, making it reliable for use in diverse environments.
• Tolerance Accuracy: Available with a tolerance accuracy of 0.5%, the TL431AC ensures precise voltage regulation, critical for applications requiring high precision.
• Low Dynamic Output Impedance: The dynamic output impedance is typically 0.2 ohms, contributing to stable voltage supply and regulation.

Applications:

The TL431AC is ideally suited for a multitude of applications including power supplies, battery chargers, voltage monitors, and as a replacement for Zener diodes in many applications where an improvement in Zener performance is desired.

Its ability to act as a programmable voltage reference, along with its high stability and precision, makes the TL431AC a popular choice among engineers for developing robust and reliable electronic systems.

Package and Quality:

The device is available in several package options, including the small-outline transistor (SOT-23) and the plastic small-outline (SO-8), providing flexibility in design for space-constrained applications. NXP's commitment to quality ensures that the TL431AC meets the stringent requirements of the industry, providing a dependable solution for voltage regulation needs.