Ultra low-power buck regulator boosts battery life for IoT applications

Analog Devices has introduced an ultra low-power buck regulator that extends battery life in portable devices by achieving the industry’s highest ultra-light-load power conversion efficiency. With a 90 percent efficiency rating and consuming only 180nA quiescent current, the ADP5301 buck regulator is designed to deliver maximum power for a longer period of time than previously achievable and is ideally suited for Internet of Things (IoT) applications, including wireless sensor networks and wearable devices such as fitness bands and smartwatches, says the company. The new device is housed in a tiny WLCSP package that measures less than 3.1-mm², which makes it suitable for small form factor designs.