参数资料
型号: FAN53540UCX
厂商: Fairchild Semiconductor
文件页数: 7/15页
文件大小: 0K
描述: IC REG SYNC BUCK 5A 20WLCSP
标准包装: 1
系列: *
其它名称: FAN53540UCXDKR
Typical Characteristics
Unless otherwise specified; V IN =5 V, V OUT =1.2 V, V MODE =0 V, T A =25°C, circuit in Figure 1, and components per Table 1.
35
70
2.7 VIN
65
4.2 VIN
30
25
20
15
10
5
0
3.3 VIN
5.0 VIN
5.5 VIN
60
55
50
45
40
35
30
25
20
15
10
5
5.0 VIN
5.5 VIN
0
-5
-5
0
1000
2000
3000
4000
5000
0
1000
2000
3000
4000
5000
1,400
1,200
1,000
800
600
400
Load Current (mA)
Figure 10. Regulation, 1.2 V OUT
1,400
1,200
1,000
800
600
400
Load Current (mA)
Figure 11. Regulation, 3.3 V OUT
200
PFM Exit
200
PFM Exit
0
PFM Enter
0
PFM Enter
2.5
3.0
3.5
4.0
4.5
5.0
5.5
3.5
4.0
4.5
5.0
5.5
30
Input Voltage (V)
Figure 12. PFM / PWM Boundaries, 1.2 V OUT
3.6VIN, Auto
3,000
Input Voltage (V)
Figure 13. PFM / PWM Boundaries, 3.3 V OUT
25
20
15
3.6VIN, PWM
5.0VIN, Auto
5.0VIN, PWM
2,500
2,000
1,500
10
5
0
1,000
500
0
3.6VIN, Auto
5.0VIN, Auto
0
1000
2000
3000
4000
5000
0
1000
2000
3000
4000
5000
Load Current (mA)
Figure 14. Output Voltage Ripple
? 2011 Fairchild Semiconductor Corporation
FAN53540 ? Rev. 1.0.3
7
Load Current (mA)
Figure 15. Switching Frequency
www.fairchildsemi.com
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