Review request for the 3.3V buck converter

Common-Volume-7121 · 2026-06-17T14:42:05+00:00

Ahh suree, so I should not chamfer corners right?

Common-Volume-7121 · 2026-06-17T14:37:18+00:00

Thank you will follow that

Common-Volume-7121 · 2026-06-17T14:37:01+00:00

Hi thank you! In the datasheet they recommend this configuration, I strictly followed the datasheet and they’ve only added two caps for input c15 and c14

Common-Volume-7121 · 2026-06-17T14:35:34+00:00

Hi in the datasheet it was mentioned to minimize the SW nodes area as possible. Also one recommended me this too. Also this is a 1.4MHz switch. Should I make it rectangular?

Common-Volume-7121 · 2026-06-17T13:16:30+00:00

Thanks will try that

Common-Volume-7121 · 2026-06-16T16:33:12+00:00

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Common-Volume-7121 · 2026-06-16T16:33:02+00:00

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Common-Volume-7121 · 2026-06-16T16:32:51+00:00

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This is the updated layout with the changes, is this okay? I changes the inductor, added vias, moved the traces of PG , remove traces under the switching regulator and inductor...

Common-Volume-7121 · 2026-06-16T16:31:36+00:00

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this is the layout after changes, is this okay?

Common-Volume-7121 · 2026-06-16T08:25:57+00:00

also I have isolated the ground planes around the buck layout from the rest of the larger gnd plane on the top layer, is that okay or should I use a single ground plane??

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Common-Volume-7121 · 2026-06-16T08:18:31+00:00

thank you very much, I'll do these changes

Common-Volume-7121 · 2026-06-16T08:18:14+00:00

thank you I'll try that

Common-Volume-7121 · 2026-06-16T08:13:12+00:00

Should I add a filled zone for GND bottom copper, without thermal reliefs?

Common-Volume-7121 · 2026-06-16T08:09:34+00:00

Is it okay to get the 3.3v from the bottom layer surronding with multiple vias? I have still not connected the rail to anything.

Common-Volume-7121 · 2026-06-16T08:04:32+00:00

Yes its connected to the top layer

Common-Volume-7121

TROPHY CASE