Gentlemen,
We have this product which uses LMR16006Y as a converter for a 9-20V input, 3V3 output, which powers Tiva microcontrollers and other devices, adding to around 250mA.
While further evaluating our board, I noted this signal on the SW output from the switcher.
The regular sections show a PWM with 19.4% duty PWM at 2.07MHz, which are reasonable values.
The power net after the inductor seems good and stable at 3.3V, but I wonder if this irregular SW ouput signal is correct? Does that indicate that one of the components is not properly chosen? What would that be?
Regards
Bruno