onsemi

FAN1117AS33X

FAN1117AS33X Description

The FAN1117AS33X is a linear voltage regulator designed for applications requiring a stable 3.3V output voltage and up to 1A of output current. Manufactured by onsemi, this regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a Surface Mount SOT223-4 package. The device operates within a temperature range of 0°C to 125°C, making it suitable for a variety of industrial and consumer applications. Despite its obsolete status, the FAN1117AS33X remains a reliable choice for engineers and designers seeking a robust power management solution.

FAN1117AS33X Features

• Fixed Output Voltage: The FAN1117AS33X provides a fixed output voltage of 3.3V, ensuring consistent power delivery to sensitive electronic components.
• High PSRR: With a Power Supply Rejection Ratio (PSRR) of 72dB at 120Hz, the regulator effectively filters out noise from the input power supply, resulting in cleaner output voltage.
• Low Dropout Voltage: The maximum dropout voltage is 1.2V at 1A, which allows the regulator to maintain its output voltage even when the input voltage is close to the output voltage.
• Protection Features: The device includes over-current and over-temperature protection, safeguarding both the regulator and connected circuits from potential damage.
• Mounting Type: The Surface Mount package type facilitates easy integration into compact and high-density PCB designs.
• Moisture Sensitivity Level: Rated MSL 1 (Unlimited), the FAN1117AS33X can be safely stored and handled without special moisture protection measures.
• Compliance: The regulator is REACH unaffected, ensuring compliance with environmental regulations and standards.

FAN1117AS33X Applications

The FAN1117AS33X is ideal for a range of applications where a stable and reliable power supply is crucial. Its fixed 3.3V output and 1A current capability make it suitable for powering microcontrollers, digital signal processors (DSPs), and other low-power electronic devices. The regulator's low dropout voltage and high PSRR are particularly beneficial in applications where input voltage fluctuations are common, such as in automotive electronics, industrial control systems, and consumer electronics.

Conclusion of FAN1117AS33X

The FAN1117AS33X offers a comprehensive set of features that make it a reliable and efficient linear voltage regulator. Its fixed 3.3V output, low dropout voltage, and high PSRR ensure stable and clean power delivery, while its over-current and over-temperature protection features provide robustness against potential faults. Despite being marked as obsolete, the FAN1117AS33X remains a viable option for engineers and designers who require a dependable power management solution for their projects. Its compatibility with a wide range of applications and compliance with industry standards further enhance its appeal in the electronics market.