TPS54240-Q1_16 Datasheet, PDF (35/52 Pages) Texas Instruments – 3.5-V to 42-V STEP-DOWN SWIFT DC/DC CONVERTER WITH Eco-mode CONTROL SCHEME

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APPLICATION CURVES
Vout = 50 mv / div (ac coupled)
Output Current = 1 A / div (Load Step 1.5 A to 2.5 A)
Time = 200 usec / div
Figure 51. Load Transient
Vout = 20 mV / div (ac coupled)
PH = 5 V / div
Time = 2 usec / div
Figure 53. Output Ripple, CCM
Vout = 20 mV / div (ac coupled)
PH = 5 V / div
Time = 10 usec / div
Figure 55. Output Ripple, PSM
TPS54240-Q1
SLVSAQ4B – DECEMBER 2010 – REVISED SEPTEMBER 2013
Vin = 10 V / div
Vout = 2 V / div
EN = 2 V / div
SS/TR = 2 V / div
Time = 5 msec / div
Figure 52. Startup With VIN
Vout = 20 mV / div (ac coupled)
PH = 5 V / div
Time = 2 usec / div
Figure 54. Output Ripple, DCM
Vin = 200 mV / div (ac coupled)
PH = 5 V / div
Time = 2 usec / div
Figure 56. Input Ripple, CCM
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