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Customer adopted TPS65252 in one project and shipped 100Kpcs real products, but 10% failed at end customer side.
Fail phenomena:
Start up at low temperature, it will works at “PFM” mode, Duty will be “stable” after running for a short time.(waveform and design in attach file)
PLS Analyze this case, try to find the root case and solve this issue.
Jason Wang
APP/BSR/MCP (Monolithic Converter Products)