Texas Instruments Evaluation Module for TPS5401 0.5A Step-Down SWIFT Converter TPS5401EVM-708 TPS5401EVM-708 Datenbogen
Produktcode
TPS5401EVM-708
−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
Test Setup and Results
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Figure 4. TPS5401EVM-708 Line Regulation
2.5
Load Transients
The TPS5401EVM-708 response to load transients is shown in
. 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.
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
. 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
© 2011, Texas Instruments Incorporated