onsemi

KA78R05CTSTU

KA78R05CTSTU Description

The KA78R05CTSTU is a linear voltage regulator designed for applications requiring a stable 5V output voltage with a maximum output current of 1A. Manufactured by onsemi, this regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a Through Hole package, specifically the TO220F-4L format. Despite being marked as obsolete, the KA78R05CTSTU remains a reliable choice for various electronic systems due to its robust design and comprehensive protection features.

KA78R05CTSTU Features

• Fixed Output Voltage: The KA78R05CTSTU provides a fixed 5V output voltage, ensuring consistent 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 suitable for diverse applications.
• Low Dropout Voltage: The maximum dropout voltage is only 0.5V at 1A, allowing the regulator to maintain efficiency even when the input voltage is close to the output voltage.
• Low Quiescent Current: The quiescent current is a mere 10 mA, contributing to high efficiency and minimal power loss.
• Protection Features: The KA78R05CTSTU includes over current, over temperature, over voltage, and short circuit protection, ensuring reliable operation and safeguarding against potential faults.
• Enable Control Feature: The regulator features an enable control, allowing users to turn the regulator on and off as needed, which is useful for power management in complex systems.
• Moisture Sensitivity Level: Rated at MSL 1 (Unlimited), this regulator is suitable for a wide range of environmental conditions without the need for special handling.
• Compliance: The KA78R05CTSTU is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international regulations.

KA78R05CTSTU Applications

The KA78R05CTSTU is ideal for a variety of applications where a stable 5V power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as USB hubs, routers, and other peripherals that require a stable 5V supply.
• Industrial Systems: Suitable for industrial control systems, sensors, and actuators that need reliable power regulation.
• Telecommunications: Can be used in telecom equipment where a stable power supply is crucial for uninterrupted operation.
• Automotive: Although not specifically designed for automotive applications, the KA78R05CTSTU can be used in non-critical automotive electronics that require a stable 5V supply.

Conclusion of KA78R05CTSTU

The KA78R05CTSTU is a versatile and reliable linear voltage regulator that offers a stable 5V output with a maximum current of 1A. Its low dropout voltage, comprehensive protection features, and low quiescent current make it an efficient and robust choice for a wide range of applications. Despite being marked as obsolete, the KA78R05CTSTU remains a valuable component for designers and engineers looking for a dependable power management solution.