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Tool/software:
Hello,
I implement LM5148 buck for two power supplies: +24V to +5V and +24V to +15V on same board, and on sequence +5V, then +15V. They both have +5V connected to VCCX.
Unfortunately, the +15V keeps failing. It does not fail instantly, but occasionally, 4 boards in last 4 months. Please help in identify our problems
Hello Cuong,
Please can you fill out the calculator spreadsheet with your specification so I can check your design against the recommendations, this is a good place to start, thanks.
LM5148-LM25148DESIGN-CALC Calculation tool | TI.com
David.