onsemi

KA7905

KA7905 Description

The KA7905 is a linear regulator IC designed for power management applications, manufactured by onsemi. This device is a fixed output regulator with a negative output configuration, providing a stable -5V output at a maximum current of 1A. The KA7905 is housed in a TO220-3 package, making it suitable for through-hole mounting. Despite being marked as obsolete, it remains a reliable choice for applications requiring a robust and straightforward power solution.

KA7905 Features

• Output Type: Fixed, ensuring a stable -5V output.
• Current - Output: 1A, capable of delivering sufficient power for a wide range of applications.
• Number of Regulators: Single regulator design simplifies circuit design and reduces complexity.
• Output Configuration: Negative, ideal for applications requiring negative voltage supply.
• Voltage Dropout (Max): 2V @ 1A (Typ), ensuring efficient operation even at lower input voltages.
• Current - Quiescent (Iq): 6 mA, minimizing power consumption during standby.
• PSRR: 60dB (120Hz), providing excellent noise rejection and stable output voltage.
• Operating Temperature: 0°C to 125°C, ensuring reliable performance across a wide temperature range.
• Protection Features: Over-temperature and short-circuit protection, safeguarding the device and connected circuits from damage.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for various environmental conditions.
• Mounting Type: Through-hole, providing a secure and durable connection.
• Package: Bulk, offering flexibility in packaging and handling.
• REACH Status: REACH Unaffected, ensuring compliance with environmental regulations.
• ECCN: EAR99, indicating compliance with export regulations.
• HTSUS: 8542.39.0001, facilitating accurate classification for customs and regulatory purposes.

KA7905 Applications

The KA7905 is ideal for a variety of applications that require a stable and reliable negative voltage supply. Some specific use cases include:

• Power Supply Circuits: Providing a stable -5V supply for analog and digital circuits.
• Industrial Equipment: Ensuring reliable power for control systems and instrumentation.
• Telecommunications: Supplying power to various components in communication systems.
• Automotive Electronics: Offering a robust power solution for automotive applications.
• Consumer Electronics: Powering devices that require a negative voltage supply.

Conclusion of KA7905

The KA7905 is a versatile and reliable linear regulator IC, offering a stable -5V output with a maximum current of 1A. Its fixed output type and negative configuration make it suitable for a wide range of applications, while its protection features ensure durability and safety. Despite being marked as obsolete, the KA7905 remains a valuable component for power management solutions, particularly in applications requiring a negative voltage supply. Its through-hole mounting and bulk packaging options provide flexibility in design and implementation. For engineers and designers seeking a straightforward and dependable power management solution, the KA7905 is a solid choice.