Datasheet

V 20 mV/div (-1.09 V offset)
OUT
Time 500 µs/div
V = 12 V
IN
V 5 V/div
SW
V 50 mV/div (-1.05V offset)
OUT
Time 1 µs/div
V 5 V/div
SW
V 50 mV/div (AC coupled)
IN
www.ti.com Test Setup and Results
The TPS54428EVM-052 output voltage ripple during Eco-mode™ operation is shown in Figure 10. The
output current is 0 mA.
Figure 10. TPS54428EVM-052 Eco-mode™ Output Voltage Ripple at No Load
4.9 Input Voltage Ripple
The TPS54428EVM-052 input voltage ripple is shown in Figure 11. The output current is the rated full load
of 4 A and the input voltage is set to 5 V.
Figure 11. TPS54428EVM-052 Input Voltage Ripple
9
SLVU578–December 2011 TPS54428, 4-A, SWIFT™ Regulator Evaluation Module
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