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SC221 датащи(PDF) 6 Page - Semtech Corporation

номер детали SC221
подробное описание детали  Synchronous Step-Down Regulator
PDF  14 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC221 датащи(HTML) 6 Page - Semtech Corporation

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6
SC221 x
Typical Characteristics (Continuous)
Efficiency vs. Load Current
Efficiency vs. V
IN
Efficiency vs. Load Current
(Chip Inductor vs. X-EMITM Inductor)
Load Regulation
Switching Frequency vs. V
IN
Switching Frequency vs. V
IN
0
10
20
30
40
50
60
70
80
90
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Load Current (A)
VOUT = 1.8V
VIN= 2.7V
VIN= 5.5V
VIN= 3.3V
0
10
20
30
40
50
60
70
80
90
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
VOUT = 1.8V
IOUT= 360mA
IOUT = 650mA
IOUT = 40mA
0
10
20
30
40
50
60
70
80
90
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Load Current (A)
VOUT = 1.8V
Solid Lines: Efficiency with X-EMI TM Inductor
Dashed Lines: Efficiency with Chip Inductor
VIN= 2.7V
VIN= 5.5V
VIN= 3.3V
1.77000
1.78000
1.79000
1.80000
1.81000
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Load Current (A)
Nominal VOUT = 1.8V
VIN= 5.5V
VIN= 3.3V
VIN= 2.7V
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
20.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
Input Voltage (V)
VOUT = 1.8V
Io=200mA
Io=300mA
Io=450mA
Io=650mA
16.60
16.80
17.00
17.20
17.40
17.60
17.80
18.00
18.20
18.40
2.50
3.00
3.50
4.00
4.50
5.00
5.50
Input Voltage (V)
VOUT = 1V
Io=200mA
Io=300mA
Io=450mA
Io=650mA



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