NXP Semiconductors
LPCXpresso55S36UM
LPCXpresso55S36 Development Board User Manual
Power source
Manufacturing part
number
Power supply rail
Description
USB connector J2
ZX62D-B-5PA8(30)
(Hirose Electric)
EXT_USB_5V0 (5 V)
•
Another source for SYS_5V0 supply
•
Produces HOST_USB_VBUS supply through
load switch U7 (NX5P3090UK)
•
Should be powered when using the target MCU
USB0 in Host mode
USB connector J3
ZX62D-AB-5P8(30)
(Hirose Electric)
FS_USB_5V0 (5 V) Third source for SYS_5V0 supply
From FL_USB_5V0 /
EXT_USB_5V0 /
FS_USB_5V0
SYS_5V0 (5 V)
•
One of the three sources for VIN_LDO supply
•
One of the three power sources for audio
expansion connector
•
Supplies power to mikroBUS socket connector
J8, Motor 1 + unused MCU pin socket connector
J10, Motor 2 + Arduino socket connector J102,
high-speed CAN transceiver, and voltage
translators (U25 and U26)
•
Produces P5VA supply, which is used in current
measurement circuit
Motor 1 + unused MCU
pin socket connector J10
VIN1 (5 V max.)
Another source for VIN_LDO supply
Motor 2 + Arduino socket
connector J102
VIN2 (5 V max.)
Third source for VIN_LDO supply
From VIN1 / VIN2 /
SYS_5V0 supply through
jumper JP71
VIN_LDO (5 V max.) Supplies power to the target MCU 3.3 V regulator
(U3) and 1.9 V regulator (U4)
U31
XC6227C331PR-
G (Torex
Semiconductor)
3V3 (3.3 V)
Supplies power to MCU-Link, MCU-Link serial
wire debug (SWD) connector (J16) (DNP), MCU-
Link LEDs, I2C repeater / voltage translator (U27),
voltage translators (U17, U19, U20, U21, U22,
U24, and U41), and buffer (U42)
U3
NCP692MN33T2G
(ON Semiconductor)
VCC_3V3 (3.3 V at 1
A max.)
•
One of the two sources for VCC_3V3_1V9
supply
•
Another power source for audio expansion
connector
•
Provides USB0_3V3 power to the target MCU
•
Supplies power to the target MCU LEDs (D4
and D5) and voltage translator (U11)
U4
XC6203E192PR-
G (Torex
Semiconductor)
VCC_1V9 (1.9 V at
40 mA max.)
•
Another source for VCC_3V3_1V9 supply
•
Third power source for audio expansion
connector
•
One of the two power sources for audio codec,
octal flash memory, and external flash connector
(DNP)
Table 9. LPCXpresso55S36 power supplies
...continued
LPCXpresso55S36UM
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User manual
Rev. 2 — 5 September 2022
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