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Figure 7 and Figure 8 show the typical SW node voltage waveforms with a 25A load. Figure 7 shows an
input voltage represents an input voltage of 48V and Figure 8 represents an input voltage of 72V.
Conditions: Input Voltage = 48V
Output Current = 30A
Trace 1: SW1 Node (Q2 Drain) Voltage Volts/div = 20V
Horizontal Resolution = 1µs/div
Figure 7. Switch Node Waveforms
Conditions: Input Voltage = 72V
Output Current = 30A
Trace 1: SW1 Node (Q2 Drain) Voltage Volts/div = 20V
Horizontal Resolution = 1 µs/div
Figure 8. Switch Node Waveforms
7
SNVA468C–February 2011–Revised May 2013 AN-2111 LM5045 Evaluation Board
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