Texas Instruments TPS54A20, Руководство пользователя, Страница: 10 / 25

V = 50 mV / div (ac coupled)
I
Time = 200 nsec / div
SWA = 5 V / div
SWB = 5 V / div
V = 20 mV / div (ac coupled)
O
Time = 200 nsec / div
SWA = 5 V / div
SWB = 5 V / div
Test Setup and Results
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10 SLVUAM8A – December 2015 – Revised March 2019
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TPS54A20EVM-770, 10-A, SWIFT™ regulator evaluation module
Figure 9. TPS54A20EVM-770 Output Ripple, 10 A Load
2.8 Input Voltage Ripple
Figure 10 , Figure 11 and Figure 12 show the TPS54A20EVM-770 input voltage ripple. The load currents
are 0 A, 5 A and 10 A. V
IN
= 12 V. The ripple voltage is measured directly across TP1 and TP2.
Figure 10. TPS54A20EVM-770 Input Ripple, 0 A Load