Hello,
I’m looking for a sanity check - wanted to verify that it is acceptable to use the MPL-AL4020-xxx inductors with the MP2233 IC? On the eval kit, a Wurth 744311150 is specified but I’d prefer to use the MPL series for their smaller footprint. The specifications on the MPL seem to be acceptable for my application (1.5uH for 5V/2A and 3V3/1.5A outputs) but I was hoping someone could double-check my assumptions - I’m not concerned with the higher DCR of the MPL (nor the efficiency loss vs the Wurth) for my application.
Any advice would be appreciated.
Thanks,
Chris
Hello @christopher.laatsch ,
Thank you for posting your question on the MPS Technical Forum.
You can surely use the MPL-AL Series Family of inductors for the MP2233.
What is your nominal input voltage value? Do you have any current ripple requirements for this project? Just want to make sure 1.5uH will fit your output system requirements.
Also, we do have an Inductor Selector Tool available in our website which can help you select an inductor based your Electrical requirements.
I hope this is helpful.
Regards,
Edgar
Edgar,
Thanks so much for the prompt reply and confirming my assumption that the MPS inductors are acceptable substitution for my use case. As far as input voltage goes, our target is 9-15V input (there is an external OV/UV/RP protection circuit in front of the input of the MP2233 and I had actually used simulation tool that MPS provides online (and tried out different values) and it seemed that 1.5uH was good for my use case - I also believe that I looked at the inductor selection tool that you posted but I will circle back and confirm. to In the event I need to change the value, I like the fact that the MPL-AL4020 series has higher values in the same footprint that will still handle the output current I expect so I think i have enough flexibility in my design.
Really appreciate your insight and I thank you for your asistance!
thanks,
Chris
