8.1 Power Supplies

Table 8-1. SAM9X75 SOM Series Power Supplies
Pin No.	Name	Power Type	Output Current Capability	Power Domain
130	VDDBU	Input	–	Backup supply input
145, 105	VDDIOP0, VDDIOP1	Input	–	VDDIOPx supplies input
133	VDDANA	Input	–	Analog supply input
90, 91	VDD_3V3	Output	600 mA	I/O supply and customer application output
92, 93	VDDIODDR	Output	600 mA	DDR memory supply and customer application output (1.8V for DDR2 and 1.35V for DDR3L)
81, 82	5V_MAIN	Input	–	System power input
84	VLDO1	Output	300 mA	Adjustable output depending on application settings
83	VLDO2	Output	300 mA	Adjustable output depending on application settings
142	VDDOUT25	Output	N/A	2.5V output for LVDS interface. Do not use for any other purpose.
143	VDDLVDS	Input	–	I/O supply LVDS interface supply input

The Microchip SAM9X75 System-On-Module Series is supplied by a unique input (5V_MAIN) and its internal supplies are delivered by a power management unit (MCP16502), as shown in the following figure.

Figure 8-1. SAM9X75 SOM Series Power Architecture