onsemi PMIC - PMIC - AC DC Converters, Offline Switchers - NCP1255BD65R2G NCP1255BD65R2G

The NCP1255BD65R2G is a current-mode PWM controller designed for offline power supplies, packaged in a compact SOIC-8 format. It operates with a fixed frequency of 65 kHz and can handle peak power excursions by temporarily increasing the switching frequency to 130 kHz. The controller supports a wide supply voltage range up to 35 V and features several protective mechanisms, including adjustable over power protection, brown-out protection, and an auto-recovery timer for overload and short-circuit conditions. In light load scenarios, the NCP1255BD65R2G reduces its switching frequency down to 26 kHz and can enter skip-cycle mode to enhance efficiency. The device also incorporates frequency jittering to minimize electromagnetic interference. It is suitable for applications requiring peak power capability, such as power supplies for printers and AC-DC adapters for gaming systems. The product is Pb-free, ensuring compliance with environmental standards.