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IR3863M Datasheet(PDF) 7 Page - International Rectifier |
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IR3863M Datasheet(HTML) 7 Page - International Rectifier |
7 / 21 page 7 IR3863MPBF 8/8/2012 Rev3.2 TYPICAL OPERATING DATA Tested with demoboard shown in Figure 7, VIN = 12V, VCC = 5V, VOUT = 1.05V, Fs = 300kHz, T A = 25 oC, no airflow, unless otherwise specified Figure 3. Switching Frequency vs. Load Current Figure 1. Efficiency vs. Load Current for VOUT = 1.05V Figure 2. Efficiency vs. Load Current for VIN = 12V Figure 4. R FF vs. Switching Frequency Figure 5. Output Voltage Regulation Figure 6. Line Regulation at I OUT = 6A 0 50 100 150 200 250 300 350 0 1 2 3 4 5 6 Load Current (A) 45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 0.01 0.1 1 10 Load Current (A) 12VIN 7VIN 16VIN 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 0.01 0.1 1 10 Load Current (A) VOUT = 1.05V; L = 2.2uH, 11.2mΩ VOUT = 1.5V; L = 3.3uH, 19.9mΩ VOUT = 3.3V; L = 4.7uH, 23mΩ 1.045 1.050 1.055 1.060 1.065 1.070 1.075 1.080 0 1 2 3 4 5 6 Load Current (A) 12VIN 7VIN 16VIN 1.045 1.050 1.055 1.060 1.065 1.070 1.075 1.080 7 8 9 10 11 12 13 14 15 16 Input Voltage (V) 0 200 400 600 800 1000 1200 1400 200 250 300 350 400 450 500 550 600 650 700 750 Switching Frequency (kHz) 5.0 Vout 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 |
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