Datasheet

−0.10
−0.08
−0.06
−0.04
−0.02
0.00
0.02
0.04
0.06
0.08
0.10
5 10 15 20 25 30 35
Regulation - %
V - Input Voltage - V
IN
I = 0.25 A
OUT
V = 50 mV / div (ac coupled)
OUT
I = 200 mA / div
OUT
Time = 200 µsec / div
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Figure 4. TPS5401EVM-708 Line Regulation
2.5 Load Transients
The TPS5401EVM-708 response to load transients is shown in Figure 5. The current step is from 25% to
75% of maximum rated load at a 24-V input. Total peak-to-peak voltage variation is as shown, including
ripple and noise on the output.
Figure 5. TPS5401EVM-708 Transient Response
2.6 Loop Characteristics
The TPS5401EVM-708 loop-response characteristics are shown in Figure 6 . Gain and phase plots are
shown for V
IN
voltage of 24 V. Load current for the measurement is 0.5 A.
6
TPS5401EVM-708 0.5-A, SWIFT™ Regulator Evaluation Module SLVU430–January 2011
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