Power Supply; 5 V Power Source Selection; Figure 9. Stm32U5G9J-Dk2 Power Diagram; Figure 10. 5 V Power Source Selection - ST STM32U5G9J-DK2 User Manual

6.5

Power supply

®
USB-C
connector
®
ARDUINO
connector
®
USB-C
connector
6.5.1 Power source selection
The Discovery board product is designed to be powered by a 5 V DC power supply. It is possible to configure the
power source selection with the JP1 header
UM3223 - Rev 1
Figure 9.
ST-LINK
Overvoltage
VBUS_STLK
protection
VBUS_STLK
5V_EXT
5V_USB
VEXT LDO
Overvoltage
VBUS
protection
Figure 10.
Power source
header (JP1)
STM32U5G9J-DK2 power diagram
Power
selection
5V_STLK
3V3_STLK
LDO
5V_VEXT
5V_USB
(Figure 10) to use any of the three sources described in

5 V power source selection

UM3223
Hardware layout and configuration
DC/DC discrete
components
1V1
LDO or
5V 3V3 MCU
DC/DC
Octo-SPI
LEDs
LCD
5V Backlight
Table 7.
page 13/37