LM5118-Q1: design schematic review

user5147365

Part Number: LM5118-Q1
Other Parts Discussed in Thread: LM5118, LM5088

the attachment is the schematic used lm5118&lm5088, please help to review and give your comments if have any problem, thank you

LM5088-5188.pdf

over 5 years ago

0 Garrett Roecker over 5 years ago

TI__Mastermind 21720 points

Hello user514735,

Thanks for reaching out with your question and for suing the LM5118 in your design.

Can you please let me know the applications specifications? These are needed to perform a schematic review.

VIN Range

VOUT

IOUTmax

Thanks,

garrett

0 user5147365 over 5 years ago in reply to Garrett Roecker

Prodigy 230 points

vin 9~~70v

vout:LM5088/LM5188 are all 12v

lioutmax Lm5088 =3A,LM5118=3.5A

thank you !

0 Garrett Roecker over 5 years ago in reply to user5147365

TI__Mastermind 21720 points

Hello user5147365,

Please me comments below regarding the LM5118.

1. The schematic values look fine. Nothing needs to change here.

2 Regarding the MOSFET Q3413 and Q302 I would suggest selecting a 100V MOSFET. I don't thin there is enough margin with a 75V MOSFET and a 70V input voltage.

I have contacted the engineer responsible for the LM5088. The engineer should respond to you shortly about the LM5088 portion of the schematic

Please let me know if you have any questions.

Thanks,

Garrett

0 user5147365 over 5 years ago in reply to Garrett Roecker

Prodigy 230 points

Dear Garrett,

thank you very much for your review, but I have not receive the reply for lm5088 yet. did the engineer review my schematic?

0 Timothy Hegarty over 5 years ago in reply to user5147365

TI__Guru 72702 points

Hi user,

Please send a completed quickstart file for this design. The file is available here: http://www.ti.com/product/LM5088/toolssoftware#devtools

Regards,

Tim

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LM5118-Q1: design schematic review