I have a custom board with numerous peripherals connected to the Teensy 4.1 and some of them being supplied by the on-board 3.3V reg and they are using 80mA (ADC, 16MHz clock, line driver and receiver, opto isolated inputs)

The concern I have is that the steady state of the MCU is in the order of 61degC (as reported by the internal temp sensor) and the 3.3V reg is also very warm to the touch.

The clock is the std 600MHz.

Is this temperature exceptionally high for this clock speed?

Should I be chasing down I/O current draw/sink ie could this be an issue?