WEBENCH® Tools/LM5088: LM5088 buck boost inverting from +24V to -20V simulations/calculations

Kevin,

We will find more details on the calculations used in the tool and provide update. Can you please share the values you are using when using app note SLVA721A? Specifically, for eq 6 which is for the inductor, on page 3

• Are you using VinMin for duty cycle calculations?
• Can you please share the duty cycle value (is it based on VinMin?)
• Is VinMin used for eq 6?
• Fsw value - are you using 170kHz?
• Also, what is I(L1)(pp) value you are using in the equation?

Regards,

Amod

Hi Kevin,

This issue has been fixed and changes will be reflected on ti.com in the next release cycle by the end of the month. We will inform you once the fix is available. Meanwhile, I have attached the design report for your reference.

WBDesign10478.pdf

Thanks & Regards,
Praveen 

Hi Kevin,

The fix will be available on ti.com in the next release cycle by 2nd week of Nov. We will keep you updated.

Thanks & Regards,
Praveen

Hi Kevin,

The fix will be available on ti.com by mid of Nov. We will keep you updated.

Thanks & Regards,
Praveen