Hello,
I have developed a power supply converting 26VDC to 3.3V, 5.3V, 5.6V and 24V all on one PCB (about 1"x3"x0.062") with four LMR51420 switchers and total load is approximately 8W. My unit gets hot as it is very compact (72C so far). Do you have any application notes or something that might help me understand why it is so hot? At 80% efficiency I should see 10W total from source, but am running about 12W or 70% efficiency.
Thank You.
