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Hi Chen,
LM5069 can be used. Please use the design calculator to start with the design.
www.ti.com/.../LM5069QUICK-CALC
Please click on " This resolved my issue " if this post answers your query.
Hi Albert,
It looks like a typical startup problem. The device is entering into fault mode and restarting.
Are you able to start the system without any load ? (i.e., without connecting to other board?
Can you estimate the output load including output…