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