onsemi

KA7908TU  

Linear & Switching Voltage Regulators

KA7908TU Description

The KA7908TU is a linear regulator IC designed for providing a stable -8V output voltage with a fixed output type. Manufactured by onsemi, this device is part of the Power Management (PMIC) category and is housed in a Through Hole TO220-3 package. Despite being marked as obsolete, the KA7908TU remains a reliable choice for applications requiring a negative voltage supply. It features a maximum dropout voltage of 2V at 1A, ensuring efficient regulation even under high load conditions. The regulator operates within a temperature range of 0°C to 125°C, making it suitable for a variety of industrial and commercial environments. With a quiescent current of 6 mA and a Power Supply Rejection Ratio (PSRR) of 60dB at 120Hz, the KA7908TU offers low noise and high stability. It also includes protection features such as over-temperature and short-circuit protection, enhancing its reliability and durability.

KA7908TU Features

• Output Type: Fixed -8V output voltage, providing a stable power supply for various electronic circuits.
• Current - Output: Capable of delivering up to 1A of current, making it suitable for applications requiring moderate power levels.
• Number of Regulators: Single regulator design simplifies circuit design and reduces component count.
• Output Configuration: Negative output voltage, ideal for applications requiring a negative power supply.
• Voltage Dropout (Max): 2V at 1A (Typ), ensuring efficient operation even under high load conditions.
• Operating Temperature: Wide operating temperature range of 0°C to 125°C, suitable for diverse environmental conditions.
• Current - Quiescent (Iq): Low quiescent current of 6 mA, minimizing power consumption during standby.
• PSRR: 60dB at 120Hz, providing high stability and low noise performance.
• Protection Features: Over-temperature and short-circuit protection, enhancing reliability and durability.
• Mounting Type: Through Hole, ensuring robust mechanical stability and ease of integration into existing systems.
• Package: Supplied in a Tube package, facilitating easy handling and storage.

KA7908TU Applications

The KA7908TU is ideal for a range of applications where a stable -8V power supply is required. Some specific use cases include:

• Industrial Control Systems: Providing a reliable power supply for control circuits and sensors.
• Telecommunications Equipment: Supplying power to bias circuits and other components requiring a negative voltage.
• Medical Devices: Ensuring stable power for critical components in medical monitoring and diagnostic equipment.
• Consumer Electronics: Used in power supplies for audio amplifiers and other devices requiring a negative voltage rail.
• Automotive Electronics: Suitable for powering various electronic modules in automotive systems.

Conclusion of KA7908TU

The KA7908TU is a robust and reliable linear regulator IC that offers a stable -8V output with a maximum dropout voltage of 2V at 1A. Its low quiescent current and high PSRR make it an efficient and stable power supply solution. The inclusion of over-temperature and short-circuit protection features enhances its reliability, making it suitable for a wide range of industrial and commercial applications. Despite its obsolete status, the KA7908TU remains a viable option for designers and engineers looking for a dependable negative voltage regulator.

KA7908TU Documents

Download datasheets and manufacturer documentation for KA7908TU

Datasheets :

KA79xx(A),LM78xx      

PCN Packaging :

Mult Devices 24/Oct/2017       Tape and Box/Reel Barcode Update 07/Aug/2014      

PCN Obsolescence/ EOL :

Mult Dev EOL 22/Dec/2017      

HTML Datasheet :

TO220B03 Pkg Drawing      

PCN Design/Specification :

Materials 09/Oct/2007       Logo 17/Aug/2017      

Environmental Information :

onsemi RoHS