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Fujitsu announces two new energy harvesting power management IC Products


Fujitsu Semiconductor today announced the release of two new power management IC products developed to utilize energy harvesting, the MB39C811 DC/DC buck converter and the MB39C831 DC/DC boost converter. Energy harvesting is the process of collecting, or harvesting, minute amounts of unharnessed energy from the surrounding environment, including light and vibration, and converting these to electricity. The MB39C811 buck converter features a quiescent current of just 1.5µA and achieves world-leading results in ultra-low power operation. The MB39C811 is also the world’s first power management IC that can individually perform and manage energy harvesting using both light and vibration elements simultaneously.

Energy Harvesting Power Management_IC
The MB39C831 boost converter includes a function that automatically responds to changes in the surrounding environment in order to store electrical power, such as harvesting power from light according to variations in ambient light as well as harvesting thermal power according changes in ambient temperature. This function enables the unit to store energy harvested from the different elements at very high levels of efficiency.
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