onsemi

KA78R09CTU

KA78R09CTU Description

The KA78R09CTU is a fixed-output linear voltage regulator designed by onsemi, offering a reliable and efficient solution for a wide range of electronic applications. This regulator is designed to provide a stable 9V output voltage with a maximum input voltage of 35V. It features a robust output current capability of 1A, ensuring consistent performance even under demanding conditions. The KA78R09CTU is housed in a through-hole TO220F-4L package, making it suitable for applications requiring a physically robust and thermally efficient design.

KA78R09CTU Features

• Fixed Output Voltage: The KA78R09CTU provides a fixed output voltage of 9V, ensuring stable power supply to connected devices.
• High Input Voltage Range: With a maximum input voltage of 35V, this regulator can handle a wide range of input voltages, making it versatile for various power supply designs.
• High Output Current: The regulator supports a maximum output current of 1A, suitable for applications requiring significant power delivery.
• Low Dropout Voltage: The maximum dropout voltage of 0.5V at 1A ensures high efficiency and minimal power loss, even at high load currents.
• Enable Control Feature: The enable feature allows for dynamic control of the regulator's operation, providing flexibility in power management.
• Protection Features: The KA78R09CTU includes over-current, over-temperature, over-voltage, and short-circuit protection, ensuring reliable operation and protection against common fault conditions.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the KA78R09CTU is suitable for use in environments with varying humidity levels.
• Low Quiescent Current: The regulator operates with a low quiescent current of 10 mA, minimizing power consumption during standby or low-load conditions.
• Compliance and Packaging: The KA78R09CTU is REACH unaffected and packaged in a tube, ensuring compliance with environmental regulations and ease of handling.

KA78R09CTU Applications

The KA78R09CTU is ideal for a variety of applications where a stable and reliable power supply is required. Its high output current and fixed voltage make it suitable for:

• Consumer Electronics: Providing stable power to devices such as radios, amplifiers, and other audio equipment.
• Industrial Equipment: Powering control systems, sensors, and actuators in industrial settings.
• Telecommunications: Supplying power to communication modules and base stations.
• Automotive Electronics: Ensuring reliable power supply to electronic control units (ECUs) and other automotive devices.
• Medical Devices: Powering medical equipment that requires stable and precise voltage regulation.

Conclusion of KA78R09CTU

The KA78R09CTU is a versatile and reliable linear voltage regulator that offers a fixed 9V output with a maximum input voltage of 35V and an output current of 1A. Its low dropout voltage, enable control feature, and comprehensive protection mechanisms make it an excellent choice for applications requiring stable and efficient power delivery. Despite being marked as obsolete, the KA78R09CTU remains a robust solution for various electronic systems, ensuring reliable performance and compliance with environmental standards.