i.MX6UL Power-Rails

[juergene]

Hello community,

i wanted to know, why are the following power rails shown in the MCIMX6UL-EVK design schematic

VDD_ARM_IN: 400 mA

VDD_SOC_IN: 500 mA

Because there is only one power rail and this is VDD_SOC_IN.

Defined with a maximum supply current of 500 mA (i.MX6UL datasheet)

Does it mean the i.MX6UL need more than 500 mA at VDD_SOC_IN - Rail (900 mA given from schmeatic) ?

Best regards

[gusarambula · Accepted solution]

Hello Juergen Elst,

The values on the i.MX6UL Datasheet are correct. I would say that the reason why there is more capacity on the schematic is because it’s using LDOs instead of a PMIC so they are listing the capacity of the LDO itself rather than the requirements.

The extra current does not hurt but should not be required.

Regards,