Ultra low-power energy harvester with integrated battery charger

Now stocked by Digi-Key, the STMicroelectronics SPV1050 is an ultra low-power energy harvester with integrated battery charger designed to help designers achieve high efficiency and small form factor critical for a remote sensing node. The full-bridge DC-DC converter, configurable either in a boost or buck-boost topology for a wide input voltage range to fit both photovoltaic (PV) cells or thermal energy generators (TEG), is controlled by a maximum power point tracking algorithm (MPPT) that can boost the energy harvested by 60%. The SPV1050 is available in a 5mm x 5mm, 20-lead QFN package and in die form.