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SC120 Datasheet(PDF) 7 Page - Semtech Corporation

Part # SC120
Description  Low Voltage Synchronous Boost Converter
PDF  21 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC120 Datasheet(HTML) 7 Page - Semtech Corporation

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PRELIMINARY
SC120
7
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.77
1.78
1.79
1.8
1.81
1.82
1.83
1.84
1.85
V
IN
(V)
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, I
OUT
= 4mA
Line Regulation — PSAVE Mode (V
OUT = 4.0V)
0.5
1
1.5
2
2.5
3
3.5
4
3.85
3.9
3.95
4
4.05
V
IN
(V)
R1 = 1.37MΩ, R2 = 590kΩ, L = 4.7μH, I
OUT
= 4mA
Line Regulation — PWM Mode (V
OUT = 4.0V)
0.5
1
1.5
2
2.5
3
3.5
4
3.85
3.9
3.95
4
4.05
V
IN
(V)
R1 = 1.37MΩ, R2 = 590kΩ, L = 4.7μH, I
OUT
= 75mA
Line Regulation — PWM Mode (V
OUT = 3.3V)
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
2.75
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
= 75mA
Line Regulation — PSAVE Mode (V
OUT = 1.8V)
Line Regulation — PWM Mode (V
OUT = 1.8V)
Line Regulation — PSAVE Mode (V
OUT = 3.3V)
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.77
1.78
1.79
1.8
1.81
1.82
1.83
1.84
1.85
V
IN
(V)
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, I
OUT
= 45mA
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
2.75
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
= 4mA
Typical Characteristics (continued)
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C



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