Part Number:OMAP-L138
When USB0 is in host mode, but VBUS is generated by an external circuit, does OMAP-L138 still need to see 5V on the VBUS input? More specifically, does OMAP-L138 draw current on this peripheral just from the 5V supply being present? The TRM does indicate that there is a charge pump on this input. We are wondering if there is an opportunity to save DC current by isolating the OMAP-L138 VBUS input from the external 5V LDO when using USB0 in host mode.