We designed a circuit using the LM46002 (refer to the circuit diagram below) and conducted a conducted emission test.
By opening the RT line, the switching frequency in the 500khz band has a margin of 1.39dB at 514kHz, which is insufficient. If it is possible to respond by changing the circuit constants, please provide support.
And one question: I changed the RT connection resistor, inductor, and output terminal CAP due to lack of margin in the 500kHZ band and changed the switching frequency to the 1MHz band. There was no problem with the conducted emission test, but when a surge test is applied, the LM46002 resets. Please check this part as well if possible.
Integer change details when changing 1MHz switching : (RT : 39k, L51 : 6.8uH, C66 : 47uF or 100uF, C67 : 47uF or 100uF)
