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TPS61291: Design Issue

Part Number: TPS61291

This is regarding an issue that we are facing with TPS61291. During switching on, we are getting high ripple voltage before and after the TPS61291 bypass/boost regulator. Please find the attached schematic and traced waveform report for your initial reference to understand the issue. The max amplitude of ripple is reaching till 10V. In the schematic component values are same that we are using right now.


We appreciate if any TI engineer can connect with us to discuss the issue on Teams or other communication mode. We are using the same IC from last couple of years. Our annual consumption is approx. 25K- 50K. Kindly help us to retune the circuit around TPS61291.


Feel free to connect us for further queries

TPS61291 problem statement.docx