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FAN1581M25X

FAN1581M25X Description

The FAN1581M25X is a linear regulator designed for high-performance power management applications. Manufactured by Fairchild Semiconductor (now part of onsemi), this IC offers a fixed output voltage of 2.5V with a maximum output current of 5A. It is housed in a TO263-5 package, making it suitable for surface mount applications. The regulator operates within an input voltage range up to 7V and features a maximum dropout voltage of 1.18V at 5A, ensuring efficient power delivery even under high load conditions.

FAN1581M25X Features

• Operating Temperature Range: The FAN1581M25X is designed to operate within a wide temperature range of 0°C to 125°C, making it suitable for various industrial and automotive applications where extreme temperatures are common.
• Low Quiescent Current: With a quiescent current of only 6 mA, this regulator minimizes power consumption during standby conditions, enhancing overall system efficiency.
• High PSRR: The regulator boasts a high power supply rejection ratio (PSRR) of 80dB at 120Hz, effectively filtering out noise from the input supply and ensuring a clean output voltage.
• Protection Features: Integrated over-current and over-temperature protection features safeguard the regulator and connected components from damage due to excessive current or temperature, enhancing reliability and longevity.
• Compliance: The FAN1581M25X is ROHS3 compliant, adhering to stringent environmental regulations and ensuring the use of environmentally friendly materials.

FAN1581M25X Applications

The FAN1581M25X is ideal for a variety of applications that require stable and efficient power regulation. Its fixed 2.5V output and high current capacity make it suitable for:

• Embedded Systems: Providing stable power to microcontrollers, sensors, and other low-voltage components in embedded systems.
• Telecommunications: Ensuring reliable power supply in base stations, routers, and other telecom equipment.
• Automotive Electronics: Powering critical electronic components in vehicles, such as ECUs, infotainment systems, and advanced driver-assistance systems (ADAS).
• Industrial Control: Supplying power to PLCs, motor controllers, and other industrial automation equipment.

Conclusion of FAN1581M25X

The FAN1581M25X is a robust and efficient linear regulator that offers significant advantages over similar models. Its wide operating temperature range, low quiescent current, and high PSRR make it an excellent choice for demanding applications. The integrated protection features and compliance with environmental regulations further enhance its appeal. While the product is now obsolete, its legacy continues to influence the design of modern power management solutions. For existing systems that still rely on this regulator, the FAN1581M25X remains a reliable and efficient component.