NXP Semiconductors
UM12018
FRDM-MCXN947 Board User Manual
Figure 8. Power configuration
Table 8 describes the power supply configurations for MCU analog, USB and other operations.
Power source Zero-ohm resistor or Jumper
used
Power supply rail Description
• R151 resistor (installed)
• R212 resistor (installed)
• J25 jumper (DNP)
VDD_IO_USB • Power supply for the MCU power
pin VDD_USB
• Power source for VDD_P0/1,
VDD_P2, VDD_P3, and VDD_P4
power supplies
• R15 resistor (installed)
• J27 jumper (DNP)
VDD_BAT Power supply for VBAT domain and
Port 5
• R152 resistor (installed)
• J26 jumper (DNP)
VDD_ANA Power supply for:
• MCU analog power pin VDD_ANA
• Arduino header J2 pin 16
P3V3_MCU
• R16 resistor (installed)
• J28 jumper (DNP)
VDD_CORE_SYS Power source for:
• VDD_DCDC
• VDD_LDO_CORE_IN
• VDD_LDO_SYS_IN
Table 8. MCU power supplies
Table 9 describes the typical power supply configurations for DCDC and LDO operations.
Solder options for resistorsMode
R14 R18 R19 R17 R194 R20
• DCDC_CORE enable
• LDO_CORE disable
(Default setting)
Populate Populate Populate DNP DNP DNP
Table 9. Power supply configurations for DCDC and LDO operation
UM12018 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
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