My design has TPS62290 as '5V->3.3V converter'.
It's well running and there is no problems, even in very high temparture test.
But when I touch the top of the chip(62290),
it's going to very high temparature(about 110 celcius) immediatly,
and it's never come back, it is burn out!
Below are my schematic and lay out.
I tried in/out capacitor as 10uF, mode pin to low.
I use 3 chips in my design,
two of TPS62290(5->3.3V, Max 0.6A load) show same burn out,
one of TPS62290(5->1.2V, Max 0.6A load) never happened.