TPS56A37: TPS56A37 Output Inrush Current

Part Number: TPS56A37

Hi TI team,

We are currently using TPS56A37 in our design.There is a MOSFET that connects the output rail to the downstream system.

When this load-side MOSFET turns on, a significant inrush current occurs at the TPS56A37 output. Based on the waveform measurement, it appears that the inrush current hits the high-side and/or low-side current limit for approximately 40 µs.

We would like to understand:

  1. Is this behavior considered normal protection response of TPS56A37?

  2. Could repeated triggering of current limit for ~40 µs cause long-term reliability concerns or potential damage to the device?

 

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Any guidance would be greatly appreciated.

Best regards,
Tom