Where can I find the bode plotof the device?

suy

Other Parts Discussed in Thread: LM5155

Hi team,

I have found that most buck/boost converters do not provide bode plots in their specifications, Where can I get the recommended gain and phase margin for my current design?

over 3 years ago

0 LeonardEllis over 3 years ago

TI__Guru 71526 points

Hello Suy,

What buck/boost TI device are you using in your design?

Thank you,

~Leonard

0 suy over 3 years ago in reply to LeonardEllis

Expert 1065 points

Hi Leonard,

For the recently used LM5155, these two parameters have been obtained through the quickstart calculator provided by your colleague. Here, I just want to ask how to find its bode plot if other devices are used later. I tried to find it on WEBENCH designer but couldn't find it.

+1 Harry Hofner over 3 years ago in reply to suy

TI__Mastermind 19715 points

Hello Suy,

For those parts where we do not provide a Quick Start Calculator, please use the Power Stage Designer Tool:
www.ti.com/.../POWERSTAGE-DESIGNER

https://www.ti.com/tool/POWERSTAGE-DESIGNER?keyMatch=POWER%20STAGE%20DESIGNER%20TOOL

It is free of charge but you need to fill in the U.S. Government export approval (online document).

Best regards,
Harry

0 suy over 3 years ago in reply to Harry Hofner

Expert 1065 points

Hi Harry,

That's great. This's what I want.

Be very grateful.

Power management

Power management forum

Where can I find the bode plotof the device?