NXP Semiconductors KW45B41Z-EVK - Page 23

NXP Semiconductors
KW45B41Z-EVKUM
KW45B41Z-EVK Board User Manual
Power source Manufacturing part
number
Power supply rail Description
maximum current:
250 mA)
SW2_OUT: PMIC_
SW2 (default
voltage: 1.8 V,
maximum current:
500 mA)
Produces P1V8_EXT supply
LDO2_OUT: PMIC_
LDO2 (default
voltage: 3.3 V,
maximum current:
250 mA)
Another power supply used to produce P3V3
supply
U3 NCP1117ST33T3G
(ON Semiconductor)
P3V3_LDO (3.3 V) Produces VBOARD supply through jumper JP41
From VBAT / VBOARD /
PMIC_LDO2 supply
through jumper JP5
Note: When using VBAT
supply for producing
P3V3 supply, open
jumper JP42 to avoid any
power supply issues.
P3V3 (3.3 V) • Produces VDD_SWITCH supply through jumper
JP4
• One of the two power supplies used to produce
VDD_REG supply
From P3V3_LDO supply
through jumper JP41
VBOARD (3.3 V) • Produces MCU_VDD_REG supply
• Produces VCC_TGMCU supply
• Produces VDD_SENSOR supply for powering
up the accelerometer
• Produces VDD_MEM supply for QSPI NOR
flash memory through jumper JS1
• Produces P_LED supply for the target MCU
LEDs through jumper JS2
• Third power supply used to produce P3V3
supply
• Supplies power to mikroBUS socket connector
J12, TCXO Y3 (not populated), and reset LED
D7
• Another power supply for voltage translators U5,
U8, U9, and U11
• Provides 3.3 V powers to Arduino socket power
connector J3
• Provides 3.3 V power to Ranger 4 socket
connector J6
• Supplies power to the pullup resistor for SW5
push button
• Can be used to supply power to the pullup
resistors for SW2 and SW3 push buttons
From PMIC_SW1 output
of PMIC through jumper
JP3
P1V1_EXT (1.1 V) Produces VDD_CORE supply through jumper
JP15
Table 8. KW45B41Z-EVK power supplies...continued
KW45B41Z-EVKUM All information provided in this document is subject to legal disclaimers. © 2023 NXP B.V. All rights reserved.
User manual Rev. 2 — 13 February 2023
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