In summary, the XC9248 series has a built in synchronous driver transistor. The XC9248 is a high performance product and it has full time synchronous rectification which allows for constant peak to peak coil current throughout the load. This product requires fewer external components and achieves a higher efficiency by utilizing the synchronous rectification. Finally, the XC9248 series has a built in low-side driver current limit protection and allows the engineer to select what type of current limiter is used based on application.