- Trigger CH1 of the oscilloscope on
Phase Node and put the CH2 scope probe between test point TP6 (PVIN) and TP23
As shown in Figure 4-6, the voltage
ripple (ignoring the switching coupling to the input) is approximately 50 mV.
Figure 4-6 Input Voltage Ripple, VIN = 5
V, VOUT = 2.5 V, IOUT = 3 A