LM5122: LM5122

Muhammad Usman Qazi

Part Number: LM5122

Tool/software:

I want to boost my 12V dc input to 32Vwith 8A load at ouput. Just simulated this on WBENCH with good results. Is this product ok for the stated specs or any other option?? Plz guide

4 months ago

0 Niklas Schwarz 4 months ago

TI__Mastermind 29750 points

Hi Muhammad,

Thanks for using the e2e forum.
Yes, LM5122 should be the best suitable part for this application.
For a 250W application, I would recommend to use a multi phase design.

There are several reference designs for similar applications.
Feel free to browse through our reference library for this:
https://www.ti.com/reference-designs/index.html#search?keyword=lm5122

I can also recommend using our quickstart calculation tool for calculating external component values:
https://www.ti.com/tool/download/LM5122-BOOST-CALC

Please let me know if you need additional help.
Best regards,
Niklas

0 Muhammad Usman Qazi 3 months ago in reply to Niklas Schwarz

Prodigy 40 points

WBDesign48_Load Transient-4.pdf just simulated for 40v 6Amps...can i rely fully on these wbench simulations.plz comment

+1 Niklas Schwarz 3 months ago in reply to Muhammad Usman Qazi

TI__Mastermind 29750 points

Hi Muhammad,

The simulations are a helpful tool to estimate the device behavior.
However, I would never recommend to "fully rely" on simulation alone. A simulation can never replace a real measurement on a physical board.
If you are satisfied with the simulations and calculations so far, the common approach is to build a prototype PCB and check if the physical measurements match the simulation data.

Best regards,
Niklas

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LM5122: LM5122