onsemi

MC7809CD2TR4G

MC7809CD2TR4G Description

The MC7809CD2TR4G is a linear voltage regulator IC designed and manufactured by onsemi. It features a fixed output voltage of 9V and can deliver a continuous output current of up to 1A. This device is designed for positive output configurations and is surface mountable, making it suitable for a wide range of applications in the electronics industry. Although the product is now considered obsolete, it remains a popular choice for its reliable performance and compliance with various industry standards.

MC7809CD2TR4G Features

• Fixed Output Voltage: The MC7809CD2TR4G provides a stable 9V output, ensuring consistent performance in various applications.
• High Input Voltage Range: With a maximum input voltage of 35V, this regulator can handle a wide range of input voltages, making it versatile for different power sources.
• 1A Output Current: Capable of delivering up to 1A of output current, this regulator is suitable for applications requiring higher power demands.
• Over Temperature and Short Circuit Protection: The MC7809CD2TR4G includes built-in protection features to safeguard against potential damage from over-temperature and short-circuit conditions.
• Low Quiescent Current: At just 8mA, the quiescent current of this regulator is minimal, contributing to energy efficiency in low-power applications.
• High PSRR: The 61dB power supply rejection ratio at 120Hz ensures stable operation in noisy power supply environments.
• RoHS Compliance: As a ROHS3 compliant device, the MC7809CD2TR4G meets environmental standards for the restriction of hazardous substances.

MC7809CD2TR4G Applications

The MC7809CD2TR4G is ideal for applications requiring a stable 9V output with high reliability and efficiency. Some specific use cases include:

• Power Supplies: As a voltage regulator in power supply circuits, providing a stable 9V output for various electronic devices.
• Automotive Electronics: In automotive applications where a stable 9V supply is needed for electronic control units and other components.
• Industrial Control Systems: For voltage regulation in industrial control systems, ensuring stable operation in harsh environments.
• Telecommunications Equipment: In telecommunications equipment, providing a reliable 9V supply for signal processing and other critical functions.

Conclusion of MC7809CD2TR4G

The MC7809CD2TR4G is a reliable and efficient linear voltage regulator, offering a fixed 9V output with a maximum output current of 1A. Its high input voltage range, over-temperature and short-circuit protection, and low quiescent current make it suitable for a wide range of applications. Although now considered obsolete, its performance benefits and compliance with industry standards continue to make it a popular choice for designers and engineers in the electronics industry.