onsemi

MC7809ECDTX

MC7809ECDTX Description

The MC7809ECDTX is a fixed-output linear voltage regulator designed for a wide range of electronic applications. Manufactured by onsemi, this regulator offers a robust and reliable solution for power management. It features a fixed output voltage of 9V, capable of delivering up to 1A of current. The device is housed in a DPAK (TO-252) surface-mount package, making it suitable for compact and high-density designs. Despite its obsolescence status, the MC7809ECDTX remains a viable option for applications requiring a stable and efficient power supply.

MC7809ECDTX Features

• Output Type: Fixed at 9V, ensuring a stable power supply for various electronic circuits.
• Input Voltage Range: Capable of handling input voltages up to 35V, providing flexibility in power source selection.
• Current Capability: Delivers a maximum output current of 1A, suitable for moderate power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 2V at 1A (typical), the MC7809ECDTX ensures efficient operation even at lower input voltages.
• Protection Features: Includes over-temperature and short-circuit protection, enhancing reliability and safeguarding against potential faults.
• Operating Temperature Range: Functions reliably within an operating temperature range of 0°C to 125°C, making it suitable for a variety of environmental conditions.
• Low Quiescent Current: Consumes only 8 mA of quiescent current, contributing to energy efficiency.
• High PSRR: Offers a power supply rejection ratio (PSRR) of 71dB at 120Hz, minimizing the impact of input voltage variations on the output.
• Moisture Sensitivity Level: MSL 1 (Unlimited), indicating it is not sensitive to moisture, which is beneficial for manufacturing processes.

MC7809ECDTX Applications

The MC7809ECDTX is ideal for a range of applications where a stable and reliable power supply is essential. Its fixed 9V output and 1A current capability make it suitable for:

• Consumer Electronics: Powering devices such as radios, amplifiers, and other audio equipment.
• Industrial Control Systems: Providing stable power for sensors, actuators, and control modules.
• Telecommunications: Supplying power to communication modules and peripherals.
• Automotive Applications: Suitable for in-car electronics where a stable power supply is critical.
• General Purpose Power Supply: Ideal for a wide range of electronic devices requiring a fixed 9V supply.

Conclusion of MC7809ECDTX

The MC7809ECDTX is a versatile and reliable linear voltage regulator that offers a stable 9V output with a maximum current of 1A. Its low dropout voltage, high PSRR, and comprehensive protection features make it an excellent choice for a variety of applications. Despite being marked as obsolete, the MC7809ECDTX remains a robust solution for power management in consumer electronics, industrial control systems, telecommunications, automotive applications, and general-purpose power supplies. Its surface-mount DPAK package ensures compatibility with modern, space-constrained designs. For applications requiring a stable and efficient power supply, the MC7809ECDTX continues to be a reliable option.