intersil ISL8843 Data Sheet
Datasheet
The ISL8843 is an industry standard single-ended current mode PWM controller that can be used as a drop-in replacement for the popular 28C43 and 18C43 PWM controllers. It is suitable for a wide range of power conversion applications, including boost, flyback, and isolated output configurations. Its fast signal propagation and output switching characteristics make it an ideal product for existing and new designs.