LM43600 and Ext Clock

I have tested the input conducted noise of the LM43603 (which uses the same sync circuitry) with a 10Khz modulation frequency with a 200Khz spread. I didn't test whether it exactly followed the source clock, but the energy in the harmonics was definitely spread with a lower peak reading.

Thanks Marc. I appreciate the feedback. Lowering the peak is the goal. Do you recall what the nominal switching frequency was in your test?

I remember it being 12Vin at 2Mhz. Let me see if I can find my notes.

Thanks again Marc! That's good enough for me to have ordered several eval boards. ;-)