AP3927D High-Performance AC/DC Offline Regulator

Diodes AP3927D is a universal AC/DC offline regulator designed to deliver high efficiency and low standby power for IoT applications and home appliances. This innovative device integrates a controller and a 700 V high-performance power MOSFET into a single monolithic unit, ensuring minimal external components and a low bill of materials (BOM) cost. The AP3927D supports fixed frequency continuous conduction mode (CCM) under heavy load and pulse-frequency modulation (PFM) at light load, providing excellent performance with minimal audible noise. With a wide input voltage range of 85 V_AC to 277 V_AC, the AP3927D is versatile and reliable, featuring multiple protection mechanisms such as overtemperature protection, undervoltage lockout, output short protection, and overload protection. Available in an SO-7 (Type B) package, this regulator is ideal for various non-isolated buck and buck-boost applications, making it a robust choice for modern electronic designs.