onsemi

KA7915ATU

KA7915ATU Description

The KA7915ATU is a linear voltage regulator designed by onsemi, offering a fixed negative output voltage of -15V with a maximum output current of 1A. This regulator is housed in a through-hole TO220-3 package, making it suitable for a variety of industrial and consumer applications. Despite its obsolete product status, the KA7915ATU remains a reliable choice for applications requiring a stable negative voltage supply. The regulator features a dropout voltage of 2V at 1A (typical), ensuring efficient operation even under varying load conditions.

KA7915ATU Features

• Fixed Negative Output Configuration: The KA7915ATU provides a stable -15V output, ideal for applications requiring a negative voltage supply.
• High Current Capability: With a maximum output current of 1A, this regulator can support demanding applications that require substantial power.
• Low Dropout Voltage: A dropout voltage of 2V at 1A (typical) ensures efficient operation and minimal power loss, making it suitable for applications with varying input voltages.
• Low Quiescent Current: The regulator operates with a quiescent current of 6 mA, minimizing power consumption during standby or low-load conditions.
• High PSRR: A power supply rejection ratio (PSRR) of 60dB at 120Hz helps in maintaining a stable output voltage, reducing the impact of input voltage fluctuations.
• Protection Features: Integrated over-temperature and short-circuit protection ensures robustness and reliability, safeguarding the regulator and connected circuits from potential.
  damage- Wide Operating Temperature Range: The KA7915ATU operates reliably within a temperature range of 0°C to 125°C, making it suitable for applications in diverse environmental conditions.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the KA7915ATU is not sensitive to moisture, ensuring long-term reliability in humid environments.
• Compliance: The regulator is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international regulations.

KA7915ATU Applications

The KA7915ATU is ideal for a range of applications that require a stable negative voltage supply. Some specific use cases include:

• Power Supply Units: Providing a stable -15V supply for various electronic devices and systems.
• Industrial Control Systems: Ensuring reliable operation of control circuits that require a negative voltage reference.
• Telecommunications Equipment: Supplying power to components that need a negative voltage for proper functioning.
• Consumer Electronics: Powering devices such as audio amplifiers, oscilloscopes, and other test equipment that require a negative voltage rail.
• Automotive Electronics: Supporting in-vehicle electronic systems that need a stable negative voltage supply.

Conclusion of KA7915ATU

The KA7915ATU, despite being an obsolete product, continues to offer reliable performance and stability for applications requiring a fixed negative voltage supply. Its low dropout voltage, high PSRR, and integrated protection features make it a robust choice for various industrial and consumer applications. The wide operating temperature range and moisture sensitivity level ensure long-term reliability in diverse environments. While newer alternatives may exist, the KA7915ATU remains a viable option for engineers and designers seeking a proven solution for their negative voltage supply needs.