ST NUCLEO-WL55JC STM32WL - Figure 13. Power Supply Input from 5 VEXT (5 V, 500 Ma Maximum); Table 8. External Power Sources: 5 VCHGR (5 V)

Figure 13. Power supply input from 5V_EXT (5 V, 500 mA maximum)
External power supply input from 5 V USB charger
When the STM32WL Nucleo-64 board is power-supplied by a USB charger on CN1 (Refer to Table 8 and
Figure 14), the jumper configuration must be the following: jumper JP2 on pins 7-8 “5V_CHGR”.
Table 8. External power sources: 5V_CHGR (5 V)
Input power name
Connector pins Voltage range Maximum current
5V_CHGR CN1 5 V -
UM2592
Power supply
UM2592 - Rev 1
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