Buck regulator delivers industry’s highest power conversion efficiency

Able to extend battery life in portable devices by virtue of what is claimed to be the industry’s highest light-load power conversion efficiency at 90%, the ADP5301 buck regulator consumes just 180nA quiescent current.
It is, says Analog Devices, designed to deliver maximum power for a longer period of time than previously achievable and is suited for IoTapplications, including wireless sensor networks and wearable devices such as fitness bands and smartwatches.
It is housed in a tiny WLCSP package that measures less than 3.1mm².
The input voltage is from 6.5 to 2.05V to enable a range of battery sources or architectures. Selectable, low-noise forced PWM mode, with low output voltage ripple powers noise-sensitive analogue load up to 500mA output current.
The ADP5301 and ADP5303 (with VOUT OK and VIN OK flags, respectively) are offered in a nine-ball WLCSP, and the ADP5300 and ADP5302 (VOUT OK and VIN OK flags, respectively) are available in a 10-lead LFCSP.


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