NXP Semiconductors
LPCXpresso55S36UM
LPCXpresso55S36 Development Board User Manual
2 LPCXpresso55S36 functional description
This section describes the features and functions of the LPCXpresso55S36 board. You
can use the functionality described in this section as a reference while designing your
own target board.
Note: For details on the LPC5536 MCU, see LPC553x Data Sheet and LPC553x
Reference Manual.
2.1 Power supplies
The LPCXpresso55S36 board is powered up using the following primary power supplies:
• External 5 V power through USB micro-B connector J1
• External 5 V power through USB micro-B connector J2
• External 5 V power through USB micro-AB connector J3
• VIN1 (5 V max.) power from Motor 1 + unused MCU pin socket connector J10
• VIN2 (5 V max.) power from Motor 2 + Arduino socket connector J102
The primary power supplies are used to produce secondary power supplies for the board
to power up other board components, including the target MCU (LPC5536), MCU-Link,
mikroBUS socket, motor control and Arduino sockets, audio codec, DMIC, octal flash
memory, high-speed CAN transceiver, push buttons, and LEDs. The figure below shows
the LPCXpresso55S36 power supply diagram.
MCU-Link USB
(J1)
FL_USB_5V0
EXT USB
(J2)
EXT_USB_5V0
FS USB
(J3)
FS_USB_5V0
SYS_5V0
VIN2
LDO2 3V3
FL_3v3
LDO 3V3
LDO 1V9
VCC_1V9
VCC_3V3
VCC_3V3_1V9
MCU-Link
LPC5536
VBAT
VIN1
Figure 5. Power supply diagram
The table below describes the LPCXpresso55S36 power supplies.
Power source Manufacturing part
number
Power supply rail Description
USB connector J1 ZX62D-B-5PA8(30)
(Hirose Electric)
FL_USB_5V0 (5 V)
• One of the three sources for SYS_5V0 supply
• Supplies power to MCU-Link 3.3 V regulator
(U31)
• Provides USB1_VBUS power to MCU-Link
• Should always be powered when using the
board
Table 9. LPCXpresso55S36 power supplies
LPCXpresso55S36UM All information provided in this document is subject to legal disclaimers. © NXP B.V. 2022. All rights reserved.
User manual Rev. 2 — 5 September 2022
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