FAN4860 查看數據表（PDF） - ON Semiconductor
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FAN4860 Datasheet PDF : 21 Pages
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5.4 VOUT Typical Characteristics
Unless otherwise specified; circuit per Figure 1, 3.6 VIN, and TA=25°C.
96.00%
94.00%
92.00%
90.00%
88.00%
86.00%
84.00%
82.00%
80.00%
0
4.5Vin
3.6Vin
3.2Vin
2.5Vin
50
100
150
200
250
300
Load Current (mA)
Figure 6. Efficiency vs. VIN
94.00%
92.00%
90.00%
88.00%
86.00%
84.00%
82.00%
0
+25Ԩ
‐40Ԩ
+85Ԩ
50
100
150
200
250
300
Load Current (mA)
Figure 7. Efficiency vs. Temperature, 3.6 VIN
5.44
5.42
5.4
5.38
5.36
5.34
5.32
5.3
5.28
5.26
5.24
0
Iout (mA) @Vin=4.5V
Iout (mA) @Vin=3.6V
Iout (mA) @Vin=3.2V
Iout (mA) @ Vin=2.5V
50
100
150
200
250
300
Iload(mA)
Figure 8. Line and Load Regulation
1000
900
800
700
600
500
400
300
200
2
85Ԩ
‐40Ԩ
25Ԩ
2.5
3
3.5
4
4.5
Input voltage (V)
Figure 10. Maximum DC Load Current
100
90
‐40Ԩ
80
25Ԩ
70
85Ԩ
60
50
40
30
20
2
2.5
3
3.5
4
4.5
5
Input voltage (V)
Figure 9. Quiescent Current
1800
1700
1600
1500
1400
1300
1200
1100
1000
2
2.5
3
3.5
4
Input Voltage (V)
25Ԩ
4.5
Figure 11. Peak Inductor Current
© 2010 Fairchild Semiconductor Corporation
FAN4860 • Rev. 1.1.1
6
www.fairchildsemi.com
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