FAN4603 Fairchild Semiconductor, FAN4603 Datasheet - Page 5

• Manufacturer Part Number: FAN4603
• Description: The FAN4603 is a fully integrated synchronous DC/DC buck converter that provides up to 600mA of output current over an input voltage ranging from 2
• Manufacturer: Fairchild Semiconductor

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