FAN4603 Datasheet, PDF (5/12 Pages) Fairchild Semiconductor – 600mA, Fully Integrated, Buck Power Supply Module

Typical Performance
Unless otherwise specified, VIN = 3.7V, TA = 25°C,VIN = VEN
100%
90%
VIN=3.7V
80%
100%
90%
80%
1.82VOUT
1.5VOUT
1.3VOUT
1.23VOUT
1.0VOUT
VIN=5V
70%
60%
50%
1
10
100
Output Current (mA)
1.82VOUT
1.5VOUT
1.3VOUT
1.23VOUT
1.0VOUT
1000
70%
60%
50%
1
10
100
Output Current (mA)
1000
Figure 4. Efficiency, VIN=3.7V
Figure 5. Efficiency, VIN=5V
100%
100%
90%
90%
80%
80%
70%
60%
50%
1
40
30
20
2.5VIN
3.3VIN
3.7VIN
5.0VIN
10
100
1000
Output Current (mA)
Figure 6. 1.82VOUT Efficiency
2.5VIN
3.3VIN
3.7VIN
5.0VIN
10
0
-10
0
100
200
300
400
500
600
Output Current (mA)
Figure 8. 1.82VOUT Regulation (Normalized)
70%
60%
50%
1
10
100
Output Current (mA)
3.3VIN, -40C
3.3VIN, +85C
5.0VIN, -40C
5.0VIN, +85C
1000
Figure 7. 1.82 VOUT Efficiency Over Temperature
75
2.5VIN
3.3VIN
60
5VIN
5.0Vin, 2.2uF
45
30
15
0
0
100
200
300
400
500
600
Load Current (mA)
Figure 9. 1.82VOUT Output Ripple with Optional 2.2µF
COUT (1.5µF Actual)
© 2009 Fairchild Semiconductor Corporation
FAN4603 • Rev. 1.0.1
5
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