SC2450
POWER MANAGEMENT
Electrical Characteristic Curves
Two Channel Operation
Efficiency in Two-Channel Application Circuit (5V/12A, 3.3V/18A)
Overall System Efficiency vs. Overall Load (W ) of the 5V and 3.3V channels
95.00%
90.00%
85.00%
80.00%
75.00%
70.00%
65.00%
60.00%
0
20
40
60
80
100
120
Output Power (W )
E ffic ienc y
Phase Node Waveform of Two-Channel Application Circuit (Vin = 24V, Load Current = 12A for 5V,
Load Current = 18A for 3.3V)
2007 Semtech Corp.
ch1: Vphase5V; ch2: Vphase3.3V
10
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