I am using TPS564247DRLR for 2.8VDC with a maximum load of 2.5A in worst case peaks.
Nominal current is usually 100mA at the 2.8V output. Still i have done all the tests with 2.5A to have a worst case temperature rise.
I have considered rja=70deg to get this rise.
In practical i could confirm the same.
Now my point is whether this IC not rated for this high current at 2.8V output, or can i still reduce the temperature with Layout modificationsince i need to operate it upto 70deg ?