onsemi

FAN1112DX

FAN1112DX Description

The FAN1112DX is a linear regulator IC designed for high-performance power management applications. Manufactured by onsemi, this device offers a fixed output voltage of 1.2V and a maximum output current of 1A. It is housed in a DPAK package, which is suitable for surface mount applications. The FAN1112DX operates within a temperature range of 25°C to 125°C, making it ideal for applications requiring robust performance in varying environmental conditions.

Key specifications include a maximum input voltage of 18V, a dropout voltage of 1.2V at 1A, and a power supply rejection ratio (PSRR) of 72dB at 120Hz. The regulator features over-current and over-temperature protection, ensuring reliable operation and safeguarding against potential faults. Additionally, the FAN1112DX includes an enable control feature, providing users with the flexibility to manage the regulator's operation.

FAN1112DX Features

• Fixed Output Voltage: The FAN1112DX provides a stable 1.2V output voltage, which is ideal for powering sensitive electronic components that require a precise and consistent power supply.
• High Output Current: With a maximum output current of 1A, this regulator can efficiently power a wide range of devices, from small sensors to larger modules.
• Wide Operating Temperature Range: The ability to operate between 25°C and 125°C makes the FAN1112DX suitable for applications in diverse environments, including automotive, industrial, and consumer electronics.
• Low Dropout Voltage: A dropout voltage of 1.2V at 1A ensures high efficiency, especially in applications where the input voltage is close to the output voltage.
• High PSRR: The 72dB PSRR at 120Hz helps in filtering out noise from the power supply, resulting in a cleaner output voltage and improved overall system performance.
• Protection Features: Over-current and over-temperature protection mechanisms safeguard the regulator and connected components from damage due to excessive current or heat.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, enabling power-saving modes and controlled startup sequences.

FAN1112DX Applications

The FAN1112DX is well-suited for a variety of applications that demand reliable and efficient power management. Its fixed 1.2V output and high current capability make it ideal for:

• Consumer Electronics: Powering microcontrollers, sensors, and other low-voltage components in devices such as smartphones, tablets, and IoT devices.
• Industrial Systems: Providing stable power to control boards, PLCs, and other industrial equipment that require precise voltage regulation.
• Automotive Electronics: Suitable for powering various electronic modules in vehicles, such as ECUs, infotainment systems, and sensor networks.
• Medical Devices: Ensuring reliable power supply to critical components in medical equipment, where consistent voltage and low noise are essential.

Conclusion of FAN1112DX

The FAN1112DX is a versatile and robust linear regulator designed to meet the stringent demands of modern power management applications. Its combination of high output current, low dropout voltage, and high PSRR makes it an excellent choice for applications requiring stable and efficient power delivery. The inclusion of over-current and over-temperature protection features further enhances its reliability and safety. Despite being marked as obsolete, the FAN1112DX remains a valuable component for designers seeking a dependable and high-performance linear regulator solution.