This document describes how to reduce the power consumption, under no-load conditions, of battery chargers and adapters by using STMicroelectronics’s TSM family of secondary-side devices. This family of devices provides accurate voltage and current regulation, while incurring very low consumption at no- load conditions. In fact, owing to these innovative, integrated devices, the total power consumption for the entire system at no-load conditions can be reduced down to nearly 100mW. With the arrival of new power consumption regulations, this capability is increasingly sought after.