Datasheet

Output Voltage Ripple
2-13
Test Setup and Results
2.8 Output Voltage Ripple
The TPS54x72EVM−222 output voltage ripple is shown in Figure 2−18,
Figure 2−19, and Figure 2−20 for each device type. The input voltage is 3.3
V for the TPS54672 and TPS54972. The input voltage is 5 V for the TPS54872.
Output current for each device is the rated full load. Voltage is measured
directly across output capacitors.
Figure 2−18. Measured Output Voltage Ripple, TPS54672
V
O
(ac) 10 mV/div
Time Scale 1 µs/div
Figure 2−19. Measured Output Voltage Ripple, TPS54872
V
O
(ac) 10 mV/div
Time Scale 1 µs/div