The boost converter can power up to 3 USB ports (two 500 mA host USB and one 100 mA USB OTG). The STPMIC1 features an advanced bypass architecture allows the smooth regulation of VBUS for USB ports from a battery as well as low-cost consumer 5 V AC-DC adapters.
https://www.futureelectronics.com/npi/stmicroelectronics-stpmic1-power-management-ic
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