Yes. I suggest placing a Schottky-diode OR circuit, with the solar cell and mini PCIexpress 3.3V rail as inputs, and output tied to the VIN_DC pin of the bq25570. Otherwise the mini PCIexpress will back feed the solar cell.
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Yes. I suggest placing a Schottky-diode OR circuit, with the solar cell and mini PCIexpress 3.3V rail as inputs, and output tied to the VIN_DC pin of the bq25570. Otherwise the mini PCIexpress will back feed the solar cell.