Well done @Smoxx. Learning something new every day here.
Did not know that Richtek had these markings.
I believe another tech was hunting for a similar marking with "4U =" so that should also be Richtek?
Thanks.
You're welcome!
Do you have any pic or package info of this 4U=? And yes, as already pointed out by moderators, marking codes followed by = and - are likely to be Richtek.
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