FAN4603 Datasheet, PDF (6/12 Pages) Fairchild Semiconductor – 600mA, Fully Integrated, Buck Power Supply Module

Typical Performance
Unless otherwise specified, VIN = 3.7V, TA = 25°C,VIN = VEN
40
3.3VIN
3.3VIN, 2.2uF
30
5.0VIN
5.0VIN, 2.2uF
20
10
0
-10
0
100
200
300
400
500
600
Output Current (mA)
Figure 10. 1.82VOUT Regulation (Normalized) with
Optional 2.2µF COUT (1.5µF Actual)
100%
90%
80%
70%
60%
50%
1
10
100
Output Current (mA)
3.3VIN, -40C
3.3VIN, +85C
5.0VIN, -40C
5.0VIN, +85C
1000
Figure 12. 1.23VOUT Efficiency Over Temperature
100%
90%
80%
70%
60%
50%
1
10
100
Output Current (mA)
2.5VIN
3.3VIN
3.7VIN
5.0VIN
1000
Figure 11. 1.23 VOUT Efficiency
20
15
10
5
0
-5
-10
0
2.5VIN
3.3VIN
3.7VIN
5.0VIN
100
200
300
400
500
600
Output Current (mA)
Figure 13. 1.23VOUT Regulation (Normalized)
Figure 14. 1.82VOUT PFM / PWM Boundary
Figure 15. 1.23VOUT PFM / PWM Boundary
© 2009 Fairchild Semiconductor Corporation
FAN4603 • Rev. 1.0.1
6
www.fairchildsemi.com