NXP Semiconductors
UM12018
FRDM-MCXN947 Board User Manual
Part identifier Device / power source Output power supply Description
• HS USB connector power switch NX5P3090
UK (U3)
Table 6. 5 V power sources...continued
3.3 V power sources and selection
Table 7 describes the 3.3 V input power sources and their output power supplies.
Part identifier Device / power source Output power supply Description
U2 XC6227C331PR-G
(TOREX)
LDO_3V3 One of the sources for P3V3 supply (default
selection)
J3 (pin 8) Arduino shield
compatible header
P3V3 • Power supply for:
– PTN5150A USB Type-C CC logic
– P3T1755DP I3C sensor
– QSPI Flash memory (W25Q64JVSSIQ)
– SD card connector J12 (DNP)
– Crystal oscillator (Y3)
– CAN transceiver TJA1057 (U10)
– RGB LED (D2)
– mikroBUS connector (J6)
– Pmod connector (J7)
– Parallel camera connector (J9)
– FLEXIO / LCD connector (J8)
– MCU-Link LPC55S69 (U11)
• Power source for the P3V3_MCU supply
through the J24 jumper. For details, see
Section 1.6
• Power source for EPHY_VDDIO and EPHY_
VDDA supplies for Ethernet transceiver
LAN8741 (U9)
Table 7. P3V3 power sources
2.1.1 Power supply configuration
Once the main power configurations are set, the target MCU power configurations must be made. The MCU
power is configured by a network of jumpers or by a combination of resistors, capacitors, and diodes as shown
in Figure 8.
These jumpers provide access to insert ammeters in all the supplies connecting to the MCX N947 device. They
also provide a means of connecting external supplies to any of the MCX power pins.
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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