Can you help me find which inductor I need?

ronsimpson

Joined Oct 7, 2019
807
Where is the "fb" pin? Pin-4?
link Link to DigiKey.com looking for 100uH >7A <0.04ohm surface inductor.
TI.com said 9A but I think 7A is probably enough. I know you are only going to use 3.5A but the part will make much more under a short or heavy load.
If you want to expand your options a little try 80uH to 120uH and there should be more options.
IT's tools come up with this. (using the ADJ version)
1576036770632.png
for the inductor they said:
1576036852984.png
 

Miracletech

Joined Nov 15, 2019
125
Where is the "fb" pin? Pin-4?
link Link to DigiKey.com looking for 100uH >7A <0.04ohm surface inductor.
TI.com said 9A but I think 7A is probably enough. I know you are only going to use 3.5A but the part will make much more under a short or heavy load.
If you want to expand your options a little try 80uH to 120uH and there should be more options.
IT's tools come up with this. (using the ADJ version)
View attachment 194269
for the inductor they said:
View attachment 194270
That would be a bettter option.
 
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