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SC411 Datasheet(PDF) 22 Page - Semtech Corporation

Part # SC411
Description  Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller
PDF  27 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC411 Datasheet(HTML) 22 Page - Semtech Corporation

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© 2007 Semtech Corp.
www.semtech.com
SC411
POWER MANAGEMENT
1.2V Efficiency (Power Save Mode)
(High Efficiency Design, Page 21)
Typical Characteristics
1.2V Output Voltage (Power Save Mode)
vs. Output Current vs. Input Voltage
1.2V Switching Frequency (Power Save Mode)
vs. Output Current vs. Input Voltage
1.2V Efficiency (Continuous Conduction Mode)
(High Efficiency Design, Page 21)
1.2V Output Voltage (Continuous Conduction Mode)
vs. Output Current vs. Input Voltage
1.2V Switching Frequency (Continuous Conduction
Mode) vs. Output Current vs. Input Voltage
1.180
1.184
1.188
1.192
1.196
1.200
1.204
1.208
1.212
1.216
1.220
012
3456
IOUT (A)
VBAT = 20V
VBAT = 8V
1.180
1.184
1.188
1.192
1.196
1.200
1.204
1.208
1.212
1.216
1.220
012
3456
IOUT (A)
VBAT = 20V
VBAT = 8V
0
50
100
150
200
250
300
350
400
0123456
IOUT (A)
VBAT = 20V
VBAT = 8V
0
50
100
150
200
250
300
350
400
0123456
IOUT (A)
VBAT = 20V
VBAT = 8V
50
55
60
65
70
75
80
85
90
95
100
01
2345
678
9
10
IOUT (A)
VBAT = 20V
VBAT = 8V
50
55
60
65
70
75
80
85
90
95
100
01
2345
678
9
10
IOUT (A)
VBAT = 8V
VBAT = 20V
For efficiency charts, refer to High Efficiency Design, Figure 11 on page 21.
For all other data, refer to the Reference Design, Figure 4 on Page 17.



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