Renesas Electronics Corporation AC DC Converters, Offline Switches ISL6844IUZ

The ISL6844IUZ is a single-ended current mode PWM controller designed for various power conversion applications, including isolated buck and flyback regulators, as well as boost regulators. It features a 1A MOSFET gate driver, low start-up current of 60µA, and adjustable switching frequency up to 2MHz. The device offers fast transient response with a peak current mode control and has a propagation delay of 25ns from current sense to output. The ISL6844IUZ is characterized by tight tolerance voltage reference and current limit thresholds, ensuring reliable performance across different line, load, and temperature conditions. It is available in a Pb-free package, compliant with RoHS standards. The maximum duty cycle for this part is 50%, and it operates within a rising UVLO of 14.4V. This product is suitable for applications in telecom, datacom, industrial power systems, and PC power supplies.