The following set of figures show the switching waveforms between PFM mode and FPWM mode at 30-V input at no load and 1-A load conditions.

Figure 3-1 Switch Node Voltage, No Load, PFM-Mode

Figure 3-2 Switch Node Voltage, No Load, FPWM-Mode

Figure 3-3 Switch Node Voltage, 1-A Load, PFM-Mode

Figure 3-4 Switch Node Voltage, 1-A Load, FPWM-Mode

Figure 3-5 Switch Node Voltage, 1-A Load, Displaying Dither, PFM-Mode

Figure 3-6 Switch Node Voltage, 1-A Load, Displaying Dither, FPWM-Mode