Hi Kazuya,
Thank you for reaching out. Do you mean the modification on our LM5158EVAL board ( https://www.ti.com/tool/LM5118EVAL )? If yes, then more components in addition to the feedback network needs to be changed, because:
All output capcitors C9-C14…
Hi Rudrappa,
Thank you for reaching out with your question.
Please use the LM5118 excel based quick-start calculator. The spreadsheet runs through the calculation in the datasheet.
www.ti.com/.../lm5118quick-calc
Thanks,
Garrett
Hi Lee,
It sounds like it might be related to the compensation of the control loop. Please use the LM25118 quick-start calculator to double check the loop compensation values.
www.ti.com/.../lm5118quick-calc
Thanks,
Garrett
Evert,
Those output voltages are well within the range of the LM5118.
Here is a link to the LM5118 quick start calculator, this should help starting off the design.
http://www.ti.com/tool/lm5118quick-calc
-Garrett
Nandu,
Here is a link to the quick start calculator. It will help you calculate some of these componet values.
www.ti.com/.../lm5118quick-calc
1. R6 is used to add more slope compensation when VOUT is large.
2. R11 and C22 make a up a low pass filter…
I see you have been waiting for a response. And somehow your thread of your post was marked "Closed'. Anyway, would you please go to the following webpage and use the Quick Start Calculator?
http://www.ti.com/tool/lm5118quick-calc
Best Regards…
I just got a response from TI after they were looking into my question for 2 days. I do not understand why the current would be too high I am already successfully passing 5A through it at a lower voltage so increasing the input voltage by this much shouldn…
Hello Kevin,
Please use the quickstart calculator
For example, it is necessary to know the minimum input voltage at which the system needs to operate properly. With 0V it will not operate.
Hello Dhanyashree,
Thanks for reaching out with your questions.
The output voltage can be adjusted by changing the feedback resistor as described in the datasheet. I suggest using either WEBENCH of the quick-start calculator to help with the component…
Hi,
Sorry for the delay. I just came back from the biz trip.
Like Eric mentioned, your design may not be optimized for your power level, if 2.5W is your max power. Please refer to the design calculator tool at the following link to re-select the components…