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SC121 Datasheet(PDF) 7 Page - Semtech Corporation

Part # SC121
Description  Low Voltage Synchronous Boost Regulator
PDF  23 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC121 Datasheet(HTML) 7 Page - Semtech Corporation

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SC121
7
Typical Characteristics — V
OUT = 3.3V
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)
FB grounded, L = 4.7μH, V
IN
= 2V
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)
FB grounded, L = 4.7μH, T
A
= 25
ο
C
V
IN
= 2.0V
V
IN
= 1.0V
V
IN
= 2.95V
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
0
50
100
150
200
250
300
350
400
450
500
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
I
OUT
(mA)
FB grounded, L = 4.7μH, V
IN
= 2V
0
50
100
150
200
250
300
350
400
450
500
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
I
OUT
(mA)
FB grounded, L = 4.7μH, T
A
= 25
ο
C
V
IN
= 2.0V
V
IN
= 2.95V
V
IN
= 1.0V
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
0.6
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
3
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
V
IN
(V)
FB grounded, L = 4.7μH, I
OUT
= 90mA
0.6
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
3
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
V
IN
(V)
FB grounded, L = 4.7μH, I
OUT
= 1mA
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 = 3.3V)
Efficiency vs. I
OUT (VOUT = 3.3V)
Load Regulation (V
OUT = 3.3V)
Load Regulation (V
OUT = 3.3V)
Line Regulation — High Load (V
OUT = 3.3V)
Line Regulation — Low Load (V
OUT = 3.3V)



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