onsemi

FAN1117AD33X

FAN1117AD33X Description

The FAN1117AD33X is a linear voltage regulator designed by onsemi, a leading manufacturer in the power management integrated circuit (PMIC) category. This regulator is engineered to provide a stable 3.3V output voltage with a maximum input voltage of 18V and a continuous output current of 1A. It is housed in a DPAK package, which is suitable for surface mount applications, making it ideal for compact and high-density PCB designs.

FAN1117AD33X Features

• Operating Temperature Range: The FAN1117AD33X operates reliably within a temperature range of 0°C to 125°C, making it suitable for a wide range of industrial and consumer applications.
• High Power Supply Rejection Ratio (PSRR): With a PSRR of 72dB at 120Hz, this regulator effectively filters out noise from the input power supply, ensuring clean and stable output voltage.
• Fixed Output Voltage: The regulator provides a fixed output voltage of 3.3V, eliminating the need for external components to set the output voltage, simplifying design and reducing component count.
• Low Dropout Voltage: The maximum dropout voltage is 1.2V at 1A, allowing the regulator to maintain regulation even when the input voltage is close to the output voltage, enhancing efficiency in low-headroom applications.
• Protection Features: The FAN1117AD33X includes over-current and over-temperature protection, safeguarding the regulator and downstream components from damage due to excessive current or temperature.
• Mounting Type: The surface mount package type ensures ease of integration into modern PCB designs, facilitating automated assembly processes.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the regulator is suitable for storage and handling in a wide range of environmental conditions without the need for special packaging or handling precautions.

FAN1117AD33X Applications

The FAN1117AD33X is well-suited for a variety of applications where a stable 3.3V supply is required. Its robust design and protection features make it ideal for:

• Consumer Electronics: Providing stable power to microcontrollers, sensors, and other low-power devices in smartphones, tablets, and IoT devices.
• Industrial Systems: Ensuring reliable power supply in industrial control systems, automation equipment, and instrumentation.
• Telecommunications: Supplying power to communication modules, base stations, and network equipment.
• Automotive Electronics: Suitable for automotive applications where a stable and reliable power supply is crucial for electronic control units (ECUs) and infotainment systems.

Conclusion of FAN1117AD33X

The FAN1117AD33X is a versatile and reliable linear voltage regulator that offers a combination of high PSRR, low dropout voltage, and robust protection features. Its fixed 3.3V output and surface mount package make it an excellent choice for a wide range of applications requiring a stable and efficient power solution. Despite being marked as obsolete, the FAN1117AD33X remains a valuable component for designers looking to integrate a proven and reliable regulator into their systems.