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LMR14050: inverting buck-boost calculator

Part Number: LMR14050

I want to use the LMR14050 in an inverting buck-boost configuration, but since I’m not much of a math wizard, I was wondering if there are any calculator tools out there to select the values?

I have had good success using the Webench to create a step-down supply from the LMR14050. I have also made some inverting supplies with help from the SWIFT inverting buck-boost calculator spreadsheet on the TI website. However after reading some of the application notes on the issue, I still find it too complicated when doing the calculations myself.

So my questions are:

- is there a spreadsheet calculator for using the LMR14050 in an Inverting buck-boost configuration?

- if not can I use the values from one of the other chips in the SWIFT inverting buck-boost calculator spreadsheet?

Thanks!