The APW1172 is a step down monolithic power switching regulator with a switching current limit of 3.8A so it is able to deliver more than 2.5A DC current to the load depending on the application conditions. The output voltage can be set from 1.235V to 22V.The high current level is also achieved utilize an SO8 package with exposed pad frame. The type of package allows to re-duce the Rth (j-amb) down to approximately 45C/W.