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KA7631

KA7631 Description

The KA7631 is a linear voltage regulator designed by Fairchild Semiconductor (now part of onsemi), featuring a versatile three-regulator configuration. This IC is designed to provide stable output voltages of 5.1V, 9V, and 12V, making it suitable for a wide range of applications requiring multiple regulated power supplies. The KA7631 operates within an input voltage range up to 20V and can deliver output currents of up to 1A, with individual regulators capable of providing 500mA each. The device is housed in a through-hole package, specifically a 10SIP tube, ensuring robust mechanical stability and ease of integration into various electronic systems.

KA7631 Features

• Operating Temperature Range: The KA7631 operates reliably within a temperature range of 0°C to 125°C, making it suitable for both standard and high-temperature applications.
• Low Quiescent Current: With a quiescent current of only 2 mA, the KA7631 ensures minimal power consumption during operation, enhancing overall system efficiency.
• Fixed Output Configuration: The KA7631 provides fixed output voltages of 5.1V, 9V, and 12V, simplifying design and ensuring consistent power delivery.
• Control and Protection Features: The device includes enable and reset control features, allowing for precise control over the power supply. Additionally, it offers over-temperature, over-voltage, and short-circuit protection, ensuring robustness and reliability in various operating conditions.
• Compliance and Packaging: The KA7631 is ROHS3 compliant, adhering to environmental. standards It is packaged in a tube, facilitating easy handling and storage.
• Mounting Type: The through-hole mounting type ensures secure and durable integration into printed circuit boards, suitable for both automated and manual assembly processes.

KA7631 Applications

The KA7631 is ideal for applications requiring multiple regulated power supplies with fixed output voltages. Its ability to deliver up to 1A of current makes it suitable for powering various electronic components and systems. Specific use cases include:

• Telecommunications Equipment: Providing stable power to communication modules and interfaces.
• Industrial Control Systems: Ensuring reliable power supply for control units and sensors.
• Consumer Electronics: Powering devices such as audio amplifiers, gaming consoles, and other consumer products requiring multiple voltage levels.
• Automotive Electronics: Supplying power to various electronic components within vehicles, including infotainment systems and control modules.

Conclusion of KA7631

The KA7631 is a versatile and reliable linear voltage regulator that offers multiple fixed output voltages, making it an excellent choice for applications requiring multiple regulated power supplies. Its low quiescent current, comprehensive protection features, and robust packaging ensure efficient and reliable performance. While the KA7631 is now obsolete, its legacy continues to influence the design of modern voltage regulators. For existing systems utilizing the KA7631, it remains a dependable component, and for new designs, its specifications provide valuable insights into the requirements for multi-regulator power supply solutions.