FAN2106_09 Datasheet, PDF (8/15 Pages) Fairchild Semiconductor – 3-24V Input, 6A, High-Efficiency, Integrated Synchronous Buck Regulator

Application Circuit
FAN2106
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.
100
1400
95
90
85
8VIN 12VIN 18VIN
80
75
1200
1000
800
600
400
200
8VIN 12VIN 18VIN
70
0
1
2
3
4
5
6
Load (A)
Figure 11. 1.8VOUT Efficiency Over VIN vs. Load
0
0
1
2
3
4
5
6
Load (A)
Figure 12. 1.8VOUT Dissipation Over VIN vs. Load
100
100
95
95
90
90
85
85
VIN=12V
80
80
300KHz 500KHz 700KHz
75
75
8VIN, 300KHz
12VIN, 500KHz
18VIN, 700KHz
70
70
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Load (A)
Load (A)
Figure 13. 1.8VOUT Efficiency Over Frequency vs.
Load (Circuit Value Changes)
Figure 14. 3.3VOUT Efficiency vs. Load
(Circuit Value Changes)
© 2009 Fairchild Semiconductor Corporation
FAN2106 • Rev. 1.1.0
8
www.fairchildsemi.com