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FAN2103 数据表(PDF) 8 Page - Fairchild Semiconductor

部件名 FAN2103
功能描述  3A, 24V Input Integrated Synchronous Buck Regulator
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

FAN2103 数据表(HTML) 8 Page - Fairchild Semiconductor

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© 2007 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN2103 Rev. 1.0.3
8
Application Circuit
Figure 10. Application Circuit: 1.8 VOUT, 500KHz
Typical Performance Characteristics
Typical operating characteristics using the circuit shown in Figure 10. VIN=16V, VCC=5V, unless otherwise specified.
Efficiency
55
60
65
70
75
80
85
90
95
100
0.00
0.50
1.00
1.50
2.00
2.50
3.00
Load Current (A)
Effi8V (%)
Effi12V (%)
Effi_PSM_12V(%)
Effi18V (%)
Power Loss
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.00
0.50
1.00
1.50
2.00
2.50
3.00
Load Current (A)
Loss8V (W)
Loss12V (W)
Loss_PSM (W)
Loss18V (W)
Figure 11.
1.8 VOUT Efficiency Over VIN vs. Load
Figure 12. 1.8 VOUT Dissipation Over VIN vs. Load
Regulation Characteristic
1.818
1.820
1.822
1.824
1.826
1.828
0.00
0.50
1.00
1.50
2.00
2.50
3.00
Load Current (A)
Vo8V (V)
Vo12V (V)
Vo18V (V)
65
70
75
80
85
90
95
100
0.00
0.50
1.00
1.50
2.00
2.50
3.00
Load Curr e nt (A)
Efficiency
V
IN=8V , 300KHz
V
IN=12V , 500Khz
Figure 13. 1.8 VOUT Regulation vs. Load
Figure 14. 3.3 VOUT Efficiency vs. Load
(Circuit Values Changed)
Power Saving Mode, 12VIN


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