UC1846BJ/883 is a high performance current mode PWM controller designed for off-line and DC-to-DC converter applications. It offers a wide input voltage range and provides a constant switching frequency up to 500 kHz. With its current mode control architecture, the UC1846BJ/883 ensures excellent line and load regulation, as well as improved transient response. This PWM controller also features a programmable oscillator that allows users to adjust the frequency and soft-start for optimum system performance. The UC1846BJ/883 includes built-in protections such as overvoltage protection, undervoltage lockout, and overcurrent protection, making it ideal for a wide range of power supply designs. With its versatile features and robust design, the UC1846BJ/883 is the perfect choice for power supply applications in industrial, automotive, and consumer electronics. Its high reliability and performance make it a preferred solution for designers seeking efficient and dependable power management solutions.