Datasheet

V
IN
= 50 mV /div ac coupled
2 s /divμ
PH = 20 V /div
Inductor Current = 200 mA /div
V
IN
= 10 mV /div
2 s /divμ
PH = 20 V /div
Inductor Current = 200 mA /div
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2.9 Input Voltage Ripple
The TPS54061EVM-142 CCM input voltage ripple is shown in Figure 11 . The output current is the rated
full load of 0.2A and V
IN
= 24V. The ripple voltage is measured directly across the input capacitors.
Figure 11. TPS54061EVM-142 Input Ripple CCM
The TPS54061EVM-142 DCM input voltage ripple is shown in Figure 12 . The output current is 0.02A and
V
IN
= 24V. The ripple voltage is measured directly across the input capacitors.
Figure 12. TPS54061EVM-142 Input Ripple DCM
The TPS54061EVM-142 skip-mode, input-voltage ripple is shown in Figure 13 . The output current is less
than 0.002A and V
IN
= 24V. The ripple voltage is measured directly across the input capacitors.
9
SLVU721–May 2012 Evaluation Module for TPS54061 Synchronous Step-Down SWIFT
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