Need advice: Routing copper trace width

Thread Starter

steinar96

Joined Apr 18, 2009
239
Hey, i'm in need of a rule of thumb when choosing the width for 1oz copper during PCB layout. I'm routing a pcb which is used in a 12W linear regulator.

I used to know about a rule which stated that for every amper going trough the trace you needed aprox x many mil of copper width. atm i can't remember what it was. So i was hoping some of you knew it or had suggestions.

The trace needs to carry a maximum of 1A. The copper i have is 1 oz.

Any help appreciated.
 
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