What is the maximum tolerated voltage on the USB1_VBUS (pin 4) on the LS1012. Datasheets seems to imply that it is part of the 1.8V bank, but eval boards have this pin connected directly to VBUS which is 5V.
USB1_VBUS is not a power pin, it is an input signal with nominal voltage of 5V. Please see the AN5192 for details.
Regards,
Bulat