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SC220 데이터시트(PDF) 6 Page - Semtech Corporation

부품명 SC220
상세설명  20MHz, 650mA, X-EMI??Enabled Synchronous Step-Down Regulator
PDF  14 Pages
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제조업체  SEMTECH [Semtech Corporation]
홈페이지  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC220 데이터시트(HTML) 6 Page - Semtech Corporation

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6
SC220 x
SC220Q
Efficiency vs. V
IN
Input Voltage (V)
I
OUT = mA
2.5
3.0
3.5
4.0
4.5
5.0
I
OUT = 50mA
I
OUT = 300mA
Efficiency vs. Load Current
Load Current (A)
V
OUT = .8V
V
IN = 3.7V
0.00
0.0
0.

30 %
40 %
50 %
60 %
70 %
00 %
V
IN = 4.2V
80 %
90 %
V
IN = 2.7V
V
OUT = .8V
Typical Characteristics
Switching Frequency vs. V
IN
Switching Frequency vs. V
IN
Input Voltage (V)
I
OUT = 650mA
2.5
3.0
3.5
4.0
4.5
5.5
0
5.0
0.0
5.0
20.0
22.5
2.5
7.5
2.5
7.5
V
OUT = .8V
5.0
I
OUT = 450mA
I
OUT = 300mA
I
OUT = 200mA
Input Voltage (V)
I
OUT = 650mA
2.5
3.0
3.5
4.0
4.5
5.5
0
5.0
0.0
5.0
20.0
22.5
2.5
7.5
2.5
7.5
V
OUT = .0V
5.0
I
OUT = 450mA
I
OUT = 300mA
I
OUT = 200mA
Load Regulation
.77
.79
.80
.78
Nominal V
OUT = .8V
V
IN = 3.7V
V
IN = 4.2V
V
IN = 5.0V
V
IN = 2.7V
Load Current (A)
0.00
0.0
0.

0
0 %
20 %
Efficiency vs. Load Current
(Chip Inductor vs. X-EMITM Inductor)
Load Current (A)
V
OUT = .8V
V
IN = 3.7V
0.00
0.0
0.

V
IN = 4.2V
V
IN = 2.7V
30 %
40 %
50 %
60 %
70 %
00 %
80 %
90 %
0
0 %
20 %
Dashed Lines: Efficiency with X-EMITM Inductor
Solid Lines: Efficiency with chip Inductor
30 %
40 %
50 %
60 %
70 %
00 %
80 %
90 %
0
0 %
20 %



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