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TPS54060 with 12V output voltage

Other Parts Discussed in Thread: TPS54060, TPS54060EVM-457


we try to use the TPS54060 with 12V output voltage. In the datasheet the maximum output voltage isn't mentioned explicitely.

So we did a test with the TPS54060EVM-457 Evalboard. We changed R6 to 140k on this board. At the first test (input voltage was 48V and 75R load) the TPS54060 produced clean 12V output voltage. Then we cycled the power connection. At this time the TPS54060 died...

Maybe this was just bad luck, but maybe there is something to pay attention when using the TPS54060 with higher output voltages???

Thanks in advance for any ideas!