SC2450 Datasheet, PDF (12/20 Pages) Semtech Corporation – BI-Phase/Dual Controller

POWER MANAGEMENT
Electrical Characteristic Curves (Cont.)
Start-up (Vin = 24V, Vout1 = 5.0V/12A, Vout2 = 3.3V /18A)
SC2450
ch1: Vout5.0V; ch2: Vout3.3V
Bi-Phase Operation (Vout = 3.3V, Max. Load Current = 20A)
Efficiency in Bi-Phase Application Circuit (3.3V/20A)
90.00%
85.00%
80.00%
75.00%
70.00%
65.00%
60.00%
0
 2001 Semtech Corp.
Overall System Efficiency vs. iLoad
Overall Efficiency
5
10
15
20
Load Current (A)
12
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