Compiler/TPS55386: WE design a pcb with the tps55386,we need the volatge 5V 3A and 3.3V 3A .

user5243669

Part Number: TPS55386

Tool/software: TI C/C++ Compiler

WE DESIGN A PCB with the TPS55386,the power and TR.pcb the PCB and sch are in the attachment.we find that the circuit do not work when we test the circuit,the sw pin not out the voltage,could you give me a guide ? thank you

over 7 years ago

0 Keith Barkley over 7 years ago

Guru 42085 points

This is the wrong forum.

0 JohnTucker over 7 years ago in reply to Keith Barkley

TI__Guru**** 191445 points

User,

I moved this. It looks like this may be a duplicate post. I cannot open your file. What type is it?

0 user5243669 over 7 years ago in reply to JohnTucker

Intellectual 370 points

i am sorry ,i just see you reply. they are the file of pads,maybe you are use ALTIUM DESINGER.

0 user5243669 over 7 years ago in reply to user5243669

Intellectual 370 points

HI :

The pcb and sch are in the attachment,they are the file of PADS.

电源验证和红外验证.rar

0 JohnTucker over 7 years ago in reply to user5243669

TI__Guru**** 191445 points

Sorry user, but I cannot open that file. It appears to be corrupted. Can you try again and use the standard zip file instead of rar?

0 JohnTucker over 7 years ago in reply to JohnTucker

TI__Guru**** 191445 points

User,

I was able to open the rar file, but the PADS files will not open. To start, can you post the info in PDF format?

0 user5243669 over 7 years ago in reply to JohnTucker

Intellectual 370 points

hi thanks for you reply ,the problem has been solved .，but now i find that ,when the 3.3V out current 2A, the 3.3v OUT WILL have many clutter,how should i to

implove this problem ?

0 user5243669 over 7 years ago in reply to user5243669

Intellectual 370 points

0 JohnTucker over 7 years ago in reply to user5243669

TI__Guru**** 191445 points

Hi user,

What do you mean by "clutter"? Please let me know. If you have a waveform that demonstrates your issue it would be helpful.

0 user5243669 over 7 years ago in reply to JohnTucker

Intellectual 370 points

can you open these files? the power.zip

0 JohnTucker over 7 years ago in reply to user5243669

TI__Guru**** 191445 points

I won't be able to try to open them until tomorrow as I am at home right now and do not have any access to PCB design tools or viewers. If you have PDFs i can look at them tonight.

0 user5243669 over 7 years ago in reply to JohnTucker

Intellectual 370 points

OK ，i am sorry to trouble you again the power and TR.pdf

0 user5243669 over 7 years ago in reply to user5243669

Intellectual 370 points

haha my english is very poor

0 user5243669 over 7 years ago in reply to JohnTucker

Intellectual 370 points

i wish you have a good dream ,this problem is not very emergency

0 JohnTucker over 7 years ago in reply to user5243669

TI__Guru**** 191445 points

Do you still need any assistance? Let me know.

0 JohnTucker over 7 years ago in reply to JohnTucker

TI__Guru**** 191445 points

Another comment, your inductors are very small physically, 8.2 uH in 1210 case size. The DCR is very high and the current rating are very low. You may want to look at a different inductor.

Power management

Power management forum

Compiler/TPS55386: WE design a pcb with the tps55386,we need the volatge 5V 3A and 3.3V 3A .