Increasing PMIC current sourcing

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Increasing PMIC current sourcing

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surendrajadhav
Contributor IV

Hi,

Can we short SW1A output (i.e.DCDC_3V3) and SW2 output (i.e.VPERI_3V3) together, in order to increase the total current capacity of the 3.3V power rail.

Will it impact the power Up and Down sequence of the CPU. This is shown below.

PMIC.PNG

Regards, Surendra

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art
NXP Employee
NXP Employee

No, it is not possible to do it the way you describe due to the asynchronous nature of these switching regulators operation.


Have a great day,
Artur

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