The UC2842BNG is a step-up/step-down DC-DC controller IC manufactured by ON Semiconductor that is designed for boost, flyback, and buck topologies. This IC offers positive isolation capabilities for its output, meaning that it can prevent transient noises from entering the connected outer circuit, improving the system's overall noise immunity. This 8-PDIP-packaged device provides excellent conversion efficiency, low startup current, low minimum duty cycle, and adjustable peak current. Moreover, it also features programmable switching frequencies up to 100 kHz to facilitate design optimization. It is designed for isolated dc/dc applications such as AC/DC adapters, offline LED drivers, access points, and telecommunications.