In summary, the ISL8500x 18V synchronous buck regulator family offers a very compact and efficient, easy to use solution. The need for external compensation components is eliminated as the parts have internal compensation . They offer a light load efficiency mode to further help improve the efficiency of the regulators over all load currents. The switching frequencies may be selected by the customer. Running at higher switching frequency allows for design with smaller inductors, and output ripple can be improved as well. This results in a smaller solution size, but with the drawback of increased switching losses. The Renesas 18V portfolio offers excellent stability and reliability, making it ideal for industrial and infrastructure applications. The high efficiency enables the parts to run at a much higher ambient temperature while delivering a continuous load, thereby reducing product failures. Keeping the die temperature as low as possible, due to the low RDS(ON) FETs, will also extend the life of the part and increase the reliability of the end product. One superior feature is that both the high-side and low-side FETs current limit, fully protecting the regulator during an overcurrent event. This translates to a significant increase in the reliability of the end product.