onsemi

KA7915

KA7915 Description

The KA7915 is a fixed linear regulator designed for delivering a stable -15V output at a current of 1A. Manufactured by onsemi, this regulator is part of the Power Management Integrated Circuit (PMIC) category. Despite its obsolete status, the KA7915 remains a reliable choice for applications requiring a negative voltage output. It features a typical dropout voltage of 2V at 1A, ensuring efficient operation even under varying load conditions. The regulator is housed in a Through Hole TO220-3 package, making it suitable for a wide range of industrial and commercial applications. With a quiescent current of 6 mA and a Power Supply Rejection Ratio (PSRR) of 60dB at 120Hz, the KA7915 offers excellent performance in terms of noise reduction and stability.

KA7915 Features

• Output Type: Fixed, providing a stable -15V output.
• Current - Output: Capable of delivering up to 1A, making it suitable for applications requiring moderate current loads.
• Number of Regulators: Single regulator design simplifies circuit design and reduces component count.
• Output Configuration: Negative voltage output, ideal for applications requiring a negative supply rail.
• Voltage Dropout (Max): 2V @ 1A (Typ), ensuring efficient operation even under varying load conditions.
• Operating Temperature: Wide temperature range of 0°C to 125°C, suitable for industrial environments.
• Current - Quiescent (Iq): Low quiescent current of 6 mA, minimizing power consumption in standby mode.
• PSRR: 60dB at 120Hz, providing excellent noise rejection and stable output voltage.
• Protection Features: Over-temperature and short-circuit protection ensure reliable operation and protect against common faults.
• Mounting Type: Through Hole, offering robust mechanical stability and ease of integration into existing designs.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), indicating high resistance to moisture and suitable for various environmental conditions.
• Package: Bulk packaging, ideal for large-scale production and inventory management.

KA7915 Applications

The KA7915 is ideal for a variety of applications where a stable negative voltage supply is required. Some specific use cases include:

• Industrial Control Systems: Providing a reliable negative voltage supply for analog circuits, sensors, and actuators.
• Telecommunications: Powering negative voltage rails in communication equipment and base stations.
• Medical Equipment: Ensuring stable power supply for sensitive medical devices and monitoring systems.
• Automotive Electronics: Supplying negative voltage for automotive control modules and electronic systems.
• Consumer Electronics: Used in devices requiring a negative voltage supply, such as audio amplifiers and power supplies.

Conclusion of KA7915

Despite its obsolete status, the KA7915 remains a robust and reliable choice for applications requiring a stable -15V output. Its low dropout voltage, low quiescent current, and excellent PSRR make it a standout option in its class. The KA7915's over-temperature and short-circuit protection features further enhance its reliability and durability. With a wide operating temperature range and high moisture sensitivity level, the KA7915 is well-suited for diverse industrial and commercial applications. For engineers and designers seeking a dependable negative voltage regulator, the KA7915 offers a proven solution with a rich feature set and performance benefits.