onsemi

KA278R51CTU

KA278R51CTU Description

The KA278R51CTU is a linear regulator IC designed for power management applications, manufactured by onsemi. This device is characterized by its fixed output voltage of 5.1V and a maximum output current of 2A. It is housed in a TO220F-4L package, which is suitable for through-hole mounting. The KA278R51CTU is designed to operate with a maximum input voltage of 35V, ensuring robust performance across a wide range of input conditions. The regulator features a low dropout voltage of 0.5V at 2A, which enhances efficiency and minimizes power loss, making it ideal for applications where input voltage may be close to the desired output voltage.

KA278R51CTU Features

• Output Type: Fixed, providing a stable 5.1V output voltage.
• Input Voltage Range: Up to 35V, offering flexibility in various power supply scenarios.
• Output Current: Capable of delivering up to 2A, suitable for high-current applications.
• Low Dropout Voltage: 0.5V at 2A, ensuring high efficiency even at low input-to-output voltage differentials.
• Protection Features: Includes over-current, over-temperature, over-voltage, and short-circuit protection, enhancing reliability and safeguarding against potential faults.
• Quiescent Current: Low at 10 mA, contributing to minimal power consumption during operation.
• Moisture Sensitivity Level: MSL 1 (Unlimited), indicating the device is not sensitive to moisture, suitable for a variety of environmental conditions.
• Package Type: TO220F-4L, through-hole mounting, ensuring robust mechanical stability and ease of integration into printed boards circuit.
• Product Status: Obsolete, but still available for legacy systems and specific applications where its unique features are required.
• Compliance: REACH Unaffected, ensuring compliance with environmental and safety regulations.

KA278R51CTU Applications

The KA278R51CTU is well-suited for a variety of applications where a reliable, high-current linear regulator is required. Its fixed 5.1V output and robust protection features make it ideal for:

• Power Supply Units: Providing stable power to electronic devices and systems.
• Industrial Equipment: Ensuring reliable operation in harsh industrial environments.
• Telecommunications: Supplying power to communication devices and infrastructure.
• Consumer Electronics: Powering devices that require a stable voltage supply.
• Automotive Applications: Suitable for automotive electronics where high current and robust protection are essential.

Conclusion of KA278R51CTU

The KA278R51CTU is a versatile linear regulator IC that offers a combination of high output current, low dropout voltage, and comprehensive protection features. Its fixed 5.1V output and ability to handle up to 35V input make it suitable for a wide range of applications. Despite being marked as obsolete, the KA278R51CTU remains a reliable choice for legacy systems and specific applications where its unique characteristics are advantageous. Its compliance with REACH regulations and low moisture sensitivity level further enhance its suitability for diverse operating conditions. For engineers and designers seeking a robust, high-current linear regulator, the KA278R51CTU is a reliable and efficient solution.