TPS54061-Q1_16 Datasheet, PDF (29/39 Pages) Texas Instruments – Synchronous Step-Down DC–DC Converter

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TPS54061-Q1
SLVSBM7A – MARCH 2013 – REVISED JANUARY 2016
V_IN = 10 V /div
V_IN = 10 V /div
V_OUT = 2 V /div
V_OUT = 2 V /div
EN = 5 V /div
I_OUT = 50 mA /div
10 ms /div
Figure 49. Start-Up With V_IN
V_IN = 10 V /div
V_OUT = 2 V /div
EN = 5 V /div
I = 50 mA /div
OUT
10 ms /div
Figure 51. Prebias Start-Up With V_IN
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PH = 20 V /div
EN = 5 V /div
I_OUT = 50 mA /div
10 ms /div
Figure 50. Prebias Start-Up With ENA
PH = 20 V /div
V_IN = 100 nV /div ac coupled
V_OUT = 50 mV /div ac coupled
Inductor current = 100 mA /div
4µ s /div
Figure 52. Input and Output Ripple in DCM
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V_IN = 20 mV /div ac coupled
V_OUT= 20 mV /div ac coupled
Inductor current = 20 mA /div
4 µs /div
Figure 53. Input and Output Ripple in PSM
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