onsemi Voltage Regulators - Linear FAN1086S33X

The FAN1086S33X is a low dropout linear voltage regulator capable of delivering up to 1.5A output current. It features a fixed output voltage of 3.3V and is designed for applications requiring efficient voltage regulation with minimal input-output voltage differential. The device exhibits a typical load regulation of 0.05% and a dropout voltage of approximately 1.5V at full load, ensuring stable performance under varying load conditions. This regulator includes on-chip thermal limiting for protection against overheating and has a trimmed current limit to maintain specified output current levels. The quiescent current is directed into the load, enhancing overall efficiency compared to traditional PNP regulators. The FAN1086S33X is available in standard SOT-223 packaging, making it suitable for a variety of applications, including active SCSI terminators and post regulators for switching supplies. Engineers considering this product should note its operating input voltage range of up to 7.5V and its thermal resistance characteristics, which can vary based on the mounting technique.