TPS54340B-Q1 Datasheet, PDF (32/43 Pages) Texas Instruments – 4.5-V to 42-V Input, 3.5-A, Step-Down DC-DC Converter With Eco-Mode

TPS54340B-Q1
SLVSDX5 – FEBRUARY 2017
C1: SW
C1
C4: IL
C2: VOUT ac coupled
C2
C4
Time = 2 ms/div
Figure 38. Output Ripple CCM
C1: SW
C1
C4: IL
C4
C2: VOUT ac coupled
C2
Time = 2 ms/div
Figure 40. Output Ripple PSM
C1: SW
C1
C4: IL
C4
C3: VIN ac coupled
C3
Time = 2 ms/div
Figure 42. Input Ripple DCM
C1: SW
C1
C4: IL
C4
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C2
C2: VOUT ac coupled
Time = 2 ms/div
Figure 39. Output Ripple DCM
C1: SW
C1
C4: IL
C3: VIN ac coupled
C2
C4
Time = 2 ms/div
Figure 41. Input Ripple CCM
C1: SW
C4
C4: IL
C3
C3: VOUT ac coupled
VIN = 5.5 V
VOUT = 5 V
Time = 20 ms/div
No Load
EN Floating
Figure 43. Low Dropout Operation
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