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SC2620 Datasheet(PDF) 7 Page - Semtech Corporation |
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SC2620 Datasheet(HTML) 7 Page - Semtech Corporation |
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7 / 26 page  7 © 2006 Semtech Corp. www.semtech.com SC2620 POWER MANAGEMENT Typical Characteristics FB Overload Threshold vs Temperature 0.5 0.6 0.7 0.8 0.9 1.0 -50 -25 0 25 50 75 100 125 Temperature (°C) Soft-Start Pin Current vs Soft-Start Voltage -120 -100 -80 -60 -40 -20 0 0.0 0.5 1.0 1.5 2.0 VSS (V) ISS of the Other Channel (VSS = 0) ISS of the Swept Channel T = 25°C VIN =5V Efficiency vs Load Current 40 45 50 55 60 65 70 75 80 85 90 0 0.5 1 1.5 2 Load Current (A) VOUT1 = 3.3V VOUT2 = 1.2V Figure 1(a), VIN=12V VIN Supply Current vs Soft-Start Voltage 0 1 2 3 4 0.0 0.5 1.0 1.5 2.0 VSS (V) VSS1 = VSS2 TA = 25°C VIN = 5V VCOMP1 = 0 VCOMP2 = 0 PGOOD1 Threshold to VFB Difference Voltage vs Temperature -100 -98 -96 -94 -92 -90 -50 -25 0 255075 100 125 Temperature (°C) |
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