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SC121 датащи(PDF) 11 Page - Semtech Corporation

номер детали SC121
подробное описание детали  Low Voltage Synchronous Boost Regulator
PDF  23 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC121 датащи(HTML) 11 Page - Semtech Corporation

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SC121
11
Typical Characteristics — V
OUT = 5.0V
0.1
0.2
0.5
1
2
5
10
20
50
100 200
500
0
10
20
30
40
50
60
70
80
90
100
I
OUT
(mA)
R
1
= 931kΩ, R
2
= 294kΩ, L = 4.7μH, C
FB
= 22pF, T
A
= 25
ο
C
0.1
0.2
0.5
1
2
5
10
20
50
100 200
500
0
10
20
30
40
50
60
70
80
90
100
I
OUT
(mA)
R
1
= 931kΩ, R
2
= 294kΩ, L = 4.7μH, C
FB
= 22pF, V
IN
= 3.6V
V
IN
= 2.2V
V
IN
= 3.2V
V
IN
= 4.2V
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
0
50
100
150
200
250
300
350
400
450
500
550
4.8
4.85
4.9
4.95
5
5.05
I
OUT
(mA)
R
1
= 931kΩ, R
2
= 294kΩ, L = 4.7μH, C
FB
= 22pF, T
A
= 25
ο
C
0
50
100
150
200
250
300
350
400
450
500
550
4.8
4.85
4.9
4.95
5
5.05
I
OUT
(mA)
R
1
= 931kΩ, R
2
= 294kΩ, L = 4.7μH, C
FB
= 22pF, V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 2.2V
V
IN
= 3.2V
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
0.5
1
1.5
2
2.5
3
3.5
4
4.5
4.8
4.85
4.9
4.95
5
5.05
V
IN
(V)
R
1
= 931kΩ, R
2
= 294kΩ, L = 4.7μH, C
FB
= 22pF, I
OUT
= 1mA
0.5
1
1.5
2
2.5
3
3.5
4
4.5
4.8
4.85
4.9
4.95
5
5.05
V
IN
(V)
R
1
= 931kΩ, R
2
= 294kΩ, L = 4.7μH, C
FB
= 22pF, I
OUT
= 85mA
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
Efficiency vs. I
OUT (VOUT = 5.0V)
Efficiency vs. I
OUT (VOUT = 5.0V)
Load Regulation (V
OUT = 5.0V)
Load Regulation (V
OUT = 5.0V)
Line Regulation — Low Load (V
OUT = 5.0V)
Line Regulation — High Load (V
OUT = 5.0V)
V
IN
= 1.2V
V
IN
= 1.2V



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