npm1300 Buck regulator merging

[Anand97]

Hi Team,

I'm analyzing to use nPM1300 PMIC in one of my projects. I planned to use the integrated Buck to power my on-board device. But, the calculated current consumption is way more than the Buck output (200mA). Since there are two Buck in the PMIC, i thought of merging them through Ideal diode to increase supply current. Is this method advisable? or any other recommended method to supply for higher load?

Thanks in advance.

Regards,

Anand M

[Simonr]

So, making an ideal diode is not a good idea. First off making an ideal diode is very hard. If you're able to, all load would be pulled from the BUCK with the highest voltage, resulting in an unbalanced load. SO we can not recommend doing this.

Best regards,

Simon

[Anand97]

Thanks for the clarification Simon, I will update my architecture based on this.

Regards,

Anand M