Timeline for Switching regulator becoming unstable as voltage increases
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 17, 2023 at 1:10 | vote | accept | Feynman137 | ||
| Feb 5, 2023 at 0:54 | comment | added | Feynman137 | After some testing and modification it is true changing the layout by cutting a trace and attaching a small wire will make this circuit function as intended. However the location of the necessary cut is slightly different then proposed on 1/30. See figure 3 (page 15) on the Max datasheet which shows the inductor loop close to the IC and the capacitors closer to the load. The C104 and C105 input trace should be cut and reattached to Vout near the top left of the footprint screenshot I attached. | |
| Jan 31, 2023 at 9:06 | comment | added | Vladimir Cravero | Please see the edit. | |
| Jan 31, 2023 at 9:05 | history | edited | Vladimir Cravero | CC BY-SA 4.0 |
added 185 characters in body
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| Jan 30, 2023 at 18:32 | comment | added | Feynman137 | Would you mind drawing the proposed line cut onto the layout screenshot I attached? I am about 90% certain I understand what you are saying and will try this but I want to be sure. Also it would be interesting to see how far down you propose reconnecting the capacitors. | |
| Jan 30, 2023 at 17:08 | comment | added | Vladimir Cravero | And by the way, the way they draw the example schematic on the datasheet is a bit misleading, in my opinion. | |
| Jan 30, 2023 at 17:07 | history | answered | Vladimir Cravero | CC BY-SA 4.0 |