Other Parts Discussed in Thread: LM3478,
Am prototyping with a series of boards using RJ12 connectors for power in and TPS62175DQCR to convert either 12v or 24v in to 5v.
3 times when plugging a board into a 24v circuit the TPS62175DQCR has burnt out (on the power in pins). This has never occurred plugging to a 12v source.
Starting to not seem coincidental: is some kind of input protection advised?
(The 24v source from a switching supply is quite stable with +-100mv and certainly well below the 28v advised or 30v peak maximums for the part. Downstream the current draw at 5v is never more than 100-200mA.)