Datasheet

Time = 2 s/divm
500 mA/div
10 V/div
50 mV/div
C3: V ac coupled
IN
C1: SW
C4: I
L
C3
C4
C1
Time = 20 s/divm
200 mA/div
2 V/div
20 mV/div
C3: V ac coupled
OUT
C1: SW
C4: I
L
C3
C4
Time = 2 s/divm
1 A/div
10 V/div
200 mV/div
C3: V ac coupled
IN
C1: SW
C4: I
L
C2
C4
C1
Time = 2 ms/div
200 mA/div
10 V/div
20 mV/div
C1: SW
C4: I
L
C2: V ac coupled
OUT
C2
C4
C1
Time = 2 s/divm
1 A/div
10 V/div
20 mV/div
C2: V ac coupled
OUT
C1: SW
C4: I
L
C2
C4
C1
Time = 2 s/divm
500 mA/div
10 V/div
10 mV/div
C2: V ac coupled
OUT
C1: SW
C4: I
L
C2
C4
C1
TPS54340
SLVSBK0B –OCTOBER 2012–REVISED MARCH 2014 www.ti.com
I
OUT
= 3.5 A I
OUT
= 100 mA
Figure 41. Output Ripple CCM Figure 42. Output Ripple DCM
No Load
I
OUT
= 3.5 A
Figure 43. Output Ripple PSM
Figure 44. Input Ripple CCM
I
OUT
= 100 mA V
IN
= 5.5 V No Load
V
IN
= 12V V
OUT
= 5 V EN Floating
Figure 45. Input Ripple DCM Figure 46. Low Dropout Operation
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