PMIC MIC23451 operating voltage range

newbie_hs

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I am using Microchip SOM module in my project. Not using all the things in the SOM.

So we are redesigning the board with necessary components for my application.

Below is block diagram shows the main power flow. Output from PMIC1 (MIC23451) is connected to PMIC2 (MIC2800).

The input voltage range of PMIC1 is 2.7 to 5.5 V and in my board a 3.8 V 5 A rail is free.

As per my knowledge I can use the 3.8 V 5 A rail as an input for PMIC1.

In the reference design (page 12) PMIC1 is powered with a 5 V.

May I know can I go ahead with 3.8 V input for PMIC1?I belive I can go ahead with 3.8V
Please share your thoughts

 

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