The KA78M08R is a three-terminal positive voltage regulator from Fairchild/ON Semiconductor. It is designed to provide a fixed 8V output voltage with a current capability of up to 500mA. The device is simple to use and includes built-in protection features, making it suitable for a variety of applications where a stable 8V supply is required.

Applications

• Local voltage regulation
• Power supplies for microcontrollers and digital logic circuits
• Post-regulation for switching power supplies
• Battery chargers
• Instrumentation and control circuits

Features

• Fixed 8V output voltage
• Output current capability of 500mA
• Internal thermal overload protection
• Short circuit protection
• Output transistor safe operating area protection

Benefits

• Stable and reliable 8V output voltage.
• Easy to implement with minimal external components.
• Protection against overheating with thermal overload protection.
• Robust operation due to short circuit protection.
• Improved reliability with output transistor safe operating area protection.

Technical Specifications

The KA78M08R requires a minimum input voltage of approximately 10.5V and can handle input voltages up to 35V. It provides good line and load regulation, ensuring a stable output voltage under varying input and load conditions. The device is available in TO-220 and similar packages. The built-in protection features prevent damage to the regulator under fault conditions, ensuring reliable operation in a wide range of applications.