onsemi

KA7805AETSTU

KA7805AETSTU Description

The KA7805AETSTU is a linear voltage regulator designed by onsemi, offering a fixed output voltage of 5V and a maximum output current of 1A. This regulator is housed in a TO220-3 package and features a through-hole mounting type, making it suitable for a variety of applications where a stable and reliable power supply is required. The KA7805AETSTU operates within an input voltage range up to 35V and has a dropout voltage of 2V at 1A, ensuring efficient power conversion even under varying input conditions.

KA7805AETSTU Features

• Fixed Output Voltage: The KA7805AETSTU provides a stable 5V output, ensuring consistent power delivery 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.
• Low Dropout Voltage: At 2V dropout voltage (typical) at 1A, the KA7805AETSTU maintains high efficiency even when the input voltage is close to the output voltage.
• Over-Temperature and Short-Circuit Protection: These protection features enhance the reliability and safety of the regulator, safeguarding it against thermal overload and short-circuit conditions.
• Low Quiescent Current: The quiescent current of 6 mA ensures minimal power consumption during operation, contributing to overall system efficiency.
• High Power Supply Rejection Ratio (PSRR): With a PSRR of 68dB at 120Hz, the KA7805AETSTU effectively filters out noise from the input power supply, resulting in a cleaner output voltage.
• Wide Operating Temperature Range: The KA7805AETSTU operates reliably within a temperature range of 0°C to 125°C, making it suitable for industrial and automotive applications.
• Moisture Sensitivity Level (MSL) 1: The unlimited MSL rating ensures that the component can be stored and handled without the need for special moisture protection measures.

KA7805AETSTU Applications

The KA7805AETSTU is ideal for applications requiring a stable 5V power supply with a maximum output current of 1A. Some specific use cases include:

• Consumer Electronics: Powering devices such as smartphones, tablets, and other portable electronics that require a stable 5V supply.
• Industrial Equipment: Providing a reliable power source for sensors, actuators, and control systems in industrial environments.
• Automotive Systems: Ensuring stable power delivery to electronic components in vehicles, such as infotainment systems and electronic control units.
• Telecommunications: Supplying power to network equipment, routers, and other communication devices.

Conclusion of KA7805AETSTU

The KA7805AETSTU is a robust and versatile linear voltage regulator that offers a fixed 5V output with a maximum current of 1A. Its wide input voltage range, low dropout voltage, and comprehensive protection features make it an excellent choice for a variety of applications. Despite being marked as obsolete, the KA7805AETSTU remains a reliable solution for power management needs, especially in environments where stability and efficiency are paramount. Its compatibility with through-hole mounting and a wide operating temperature range further enhance its appeal for industrial and automotive applications.