Switching frequency and inductor value selection for MPQ4569GN-AEC1

Hi,

We are working on MPQ4569GN-AEC1 in our design.

VIN=15.5V, VOUT=5V, IOUT=0.1A

I am facing an issue finding inductor value. The switching frequency is not given in the datasheet.

Please suggest the switching frequency, inductor value and output capacitor values.

Regards,
Kiran M

Hi Kiran,

Please refer to the Application Information section of the MPQ4569GN-AEC1 data sheet.
The sections Selecting the Inductor and Switching frequency can provide some guidance on how to calculate and select components.

Our MPQ4569GN also has an evaluation board that is set up to output 3.3V at 0.3A. It may be a useful reference design that you will only need to slightly modify to meet your circuit’s specifications.

I hope this was helpful.

Thanks,
Eliza

Kind of an odd choice for 100mA out ad 15V in , page 14 of the datasheet has a graph of Freq vs the value of the frequency setting resistor.