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FAN2108EMPX Folha de dados(PDF) 8 Page - Fairchild Semiconductor |
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FAN2108EMPX Folha de dados(HTML) 8 Page - Fairchild Semiconductor |
8 / 14 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN2108 • Rev. 1.0.0 8 Application Circuit Figure 10. Application Circuit: 1.8VOUT, 500KHz Typical Performance Characteristics Typical operating characteristics using the circuit shown in Figure 10. VIN=12V, VCC=5V, unless otherwise specified. Efficiency @ Vo=1.8V, fsw=500KHz, Ta=25 0C 70 75 80 85 90 95 024 68 Load Current (A) Vin=8V Vin=12V Vin=16V Vin=20V Vin=24V Efficiency @ Vo=3.3V, fsw=300KHz, Ta=25 0C 70 75 80 85 90 95 100 02 4 6 8 Load Current (A) Vin=5V Vin=10V Vin=12V Vin=14V Vin=20V Figure 11. 1.8VOUT Efficiency Over VIN vs. Load Figure 12. 3.3VOUT Efficiency Over VIN vs. Load Efficiency@ Vin=12V, Vo=1.8V 70 75 80 85 90 95 01 2 3 456 78 Load Current (A) 300KHz 500KHz 600KHz Load Regulation @ Vo=0.8V, 500kHz, 25°C 0.7992 0.7994 0.7996 0.7998 0.8 0.8002 0.8004 0.8006 0.8008 0.801 0.8012 0 1 23 4 5 67 8 Load Current (A) Vin=8V Vin=12V Vin=16V Vin=20V Vin=24V Figure 13. 1.8VOUT Efficiency Over Frequency vs. Load Figure 14. 0.8VOUT Load Regulation Over VIN vs. Load |
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