A PCB board was developed to compare the EMI results of the LMR33630 and LM60440 devices with identical EMI input filters and PCB layout. Figure 2-10 and Figure 2-11 show the results. The results show near identical EMI performance in the high-frequency region. Consequently, the elimination of the wire bonds in the FCOL package and Enhanced HotRod QFN package lead to at least 10 dB of margin across the entire high-frequency range.

Figure 2-10 Conducted EMI Low Frequency

Figure 2-11 Conducted EMI High Frequency