TPS54531
www.ti.com
SLVSBI5 –MAY 2013
V
= 20 mV/div (ac coupled)
V
= 20 mV/div (ac coupled)
OUT
OUT
PH = 5 V/div
PH = 5 V/div
Time = 1 µs/div
Time = 500 µs/div
Figure 19. TPS54531 Full Load Output Ripple
Figure 20. TPS54531 Eco-mode™Output Ripple
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V
= 200 mV/div (ac coupled)
IN
V
= 10 V/div
IN
EN = 2 V/div
PH = 5 V/div
SS = 2 V/div
V
= 2 V/div
OUT
Time = 2 ms/div
Time = 1 µs/div
Figure 21. TPS54531 Full Load Input Ripple
Figure 22. TPS54531 Start Up Relative to VIN
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V
= 10 V/div
V
= 10 V/div
IN
IN
EN = 2 V/div
EN = 2 V/div
SS = 2 V/div
SS = 2 V/div
V
= 2 V/div
OUT
V
= 2 V/div
OUT
Time = 2 ms/div
Time = 5 ms/div
Figure 23. TPS54531 Start-up Relative to Enable
Figure 24. TPS54531 Shut Down Relative to VIN
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