Wish to design a DC-DC buck converter

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A search on Digikey would be an excellent start.

Maybe a TI chip, then use TI's design tool.
 
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ronsimpson said:

TPS40061, TPS40060, LM5088, LM5088 External MOSFETs.​

TI has 8 parts that will do 5A with internal MOSFETs. very simple. Use two in parallel.
Just form TI.
Click to expand...
Dear Sir Ronsimpson,
Thank you for your feedback.
ronsimpson said:
L4970A An old part.
PI3585-00-QFYZ
SIC461ED-T1-GE3
View attachment 137971
Click to expand...

Just for make sure, this should have following,

.OVR protection
OCR protection
"ENABLE" Signal
"FAULT" signal
1 LED indication.

The newer chips offers a lot of options.
 
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