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SC250 Datasheet(PDF) 11 Page - Semtech Corporation

Part # SC250
Description  Step-Down DC-DC Converter with Bias LDO for RF Power Amplifi ers
PDF  18 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC250 Datasheet(HTML) 11 Page - Semtech Corporation

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11
© 2006 Semtech Corp.
www.semtech.com
SC250
PRELIMINARY
POWER MANAGEMENT
Typical Characteristics
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
IOUT (V)
VIN=3.6V
VIN=3.9V
VIN=4.2V
Efficiency vs. Load Current V
OUT = 3.2V
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
IOUT (V)
VIN=3.9V
VIN=4.2V
VIN=3.3V
Efficiency vs. Load Current V
OUT = 2.5V
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
IOUT (V)
VIN=4.2V
VIN=2.7V
VIN=3.6V
Efficiency vs. Load Current V
OUT = 1.5V
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
IOUT (V)
VIN=4.2V
VIN=2.7V
VIN=3.6V
Efficiency vs. Load Current V
OUT = 1.2V
0
10
20
30
40
50
60
70
80
90
100
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
VIN (V)
IOUT=10mA
IOUT=600mA
IOUT=300mA
IOUT=100mA
Efficiency vs. V
IN
0
10
20
30
40
50
60
70
80
90
100
00.5
11.5
22.5
3
3.5
VIN (V)
IOUT=100mA
IOUT=600mA
Efficiency vs. V
OUT, VIN = 3.6V



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