PMIC product comparison: nPM2100 and NBM7100

[noram]

Hello,

I am looking into the market for PMICs for 3V primary coin cells, for use in (somewhat) remote IoT devices. 

It is exciting to read about the new nPM2100. I already have experience with Nexperia's NBM7100 battery booster.

I am not familiar with the existence of any other chips that may serve the same purpose.

How would you compare the new Nordic chip to Nexperia's?

Is nPM2100 suitable for my low-power wireless IoT application at all?

Thank you! :)

[Michal]

Hello :)

Is nPM2100 suitable for my low-power wireless IoT application at all?

I think yes, but it would help to hear some more details about the project.

If you are using 3V primary coin cells you will be at peak efficiency as well, assuming 3.3V output at least.

How would you compare the new Nordic chip to Nexperia's?

I don't have experience with that chip, but from what I can see, the biggest difference is that nPM2100 goes down to 0.8V input voltage, while NBM7100 is limited to at least 2.4V on the input.

With nPM2100 you can also consider using a single alkaline battery for your project as well instead of a coin cell.

Technically they are charging capacitors to take the load of the battery, especially near the end of the discharge, while nPM2100 can just go down to much lower voltages to grab just the last bits of energy left.

Best regards,

Michal