The KIA78R09API-U/P is a 9V fixed voltage regulator manufactured by KEC. This regulator is designed to provide a stable and regulated 9V output voltage from a higher input voltage source. It is commonly employed in a variety of electronic applications where a consistent 9V supply is required, such as powering operational amplifiers, sensors, and other analog circuits. The device incorporates built-in protection features, including overcurrent and thermal shutdown, to ensure reliable operation and prevent damage from electrical or thermal stress.

Applications:

• Operational amplifier power supplies
• Sensor power supplies
• Analog circuit power supplies
• Communication equipment
• Industrial control systems

Features:

• Fixed 9V output voltage: Provides a stable and regulated 9V output.
• Overcurrent protection: Limits the output current to prevent damage from short circuits or overloads.
• Thermal shutdown protection: Shuts down the regulator if the temperature exceeds a safe level.
• Low dropout voltage: Maintains regulation with a small difference between input and output voltage.
• Compact package: Available in a small package for space-constrained applications.
• High efficiency: Converts input voltage to output voltage with minimal power loss.

Benefits:

• Stable power supply: Ensures consistent performance of powered devices.
• Protection against damage: Overcurrent and thermal shutdown features protect the regulator and the powered devices.
• Simplified design: Offers a simple and reliable voltage regulation solution.
• Extended battery life: High efficiency minimizes power consumption in battery-powered devices.
• Improved system reliability: Enhances the overall robustness of the electronic system.

Additional Details:

The KIA78R09API-U/P typically requires a minimum input voltage slightly above 9V to maintain proper regulation. The dropout voltage is the minimum voltage difference between the input and output required for the regulator to operate correctly. The device is available in various package types, including TO-220 and SOT-223, for easy integration into circuit boards. Detailed specifications regarding input voltage range, output current, and thermal resistance can be found in the product datasheet.