SK-MB9EF120-002,-003
Hardware
© Fujitsu Semiconductor Europe GmbH
- 9 -
UG-9E0010-11
Serial Flashes (QSPI, MCU and GC)
USB (UART-emulation) and CAN (native) connectors
2.1.2 Bottom View
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Figure 2-2: Bottom View PCB-Rev.1.1
J5, J6 - Board-to-Board connectors to Multi-IO
2.2 Power Supply
The power supply circuit consists of the input-stage and three voltage-regulators. The regulators are
switch-mode types (step-down).
Having the enables of the lower voltage supplies tied to the next higher voltage supply guarantees
correct sequencing in the order required (5V0 → 3V3 → 1V2). Power-down/disconnect of power-
domains and/or -rails is not supported.
All regulators are supplied from the input-rail Vin_prot (filtered input voltage, no regulator-staggering).
