SC120 Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC120 Datasheet PDF : 32 Pages
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Typical Characteristics — V = 4.0V
OUT
Efficiency vs. I (V = 4.0V)
OUT OUT
R1 = 931kΩ, R2 = 402kΩ, L = 4.7μH, CFB = 2.2pF, TA = 25οC
100
90
V = 3.2V
IN
80
70
V = 1.2V
IN
60
50
V = 2.4V
IN
40
30
20
10
0
0.1 0.2 0.5 1 2
5 10 20
IOUT (mA)
50 100 200
Load Regulation (V = 4.0V)
OUT
R1 = 931kΩ, R2 = 402kΩ, L = 4.7μH, CFB = 2.2pF, TA = 25οC
4.1
4.05
4
3.95
VIN = 1.2V
3.9
V = 3.2V
IN
V = 2.4V
IN
3.85
0
50
100
150
200
250
300
350
400
IOUT (mA)
Line Regulation — PSAVE Mode (V = 4.0V)
OUT
R1 = 931kΩ, R2 = 402kΩ, L = 4.7μH, CFB = 2.2pF, IOUT = 5mA
4.1
T = 85°C
A
4.05
T = –40°C
A
4
T = 25°C
A
3.95
3.9
3.85
0.6
1
1.4
1.8
2.2
2.6
3
VIN (V)
3.4
3.8
SC120
Efficiency vs. I (V = 4.0V)
OUT OUT
R1 = 931kΩ, R2 = 402kΩ, L = 4.7μH, CFB = 2.2pF, VIN = 2.4V
100
T = –40°C
A
90
80
T = 85°C
A
70
T = 25°C
60
A
50
40
30
20
10
0
0.1 0.2 0.5 1 2
5 10 20
IOUT (mA)
50 100 200
Load Regulation (VOUT = 4.0V)
R1 = 931kΩ, R2 = 402kΩ, L = 4.7μH, CFB = 2.2pF, VIN = 2.4V
4.1
T = 85°C
A
4.05
T = 25°C
A
4
T = –40°C
A
3.95
3.9
T = 85°C
A
T = 25°C
A
3.85
0
T = –40°C
A
50
100
150
200
250
300
350
400
IOUT (mA)
Line Regulation — PWM Mode (VOUT = 4.0V)
R1 = 931kΩ, R2 = 402kΩ, L = 4.7μH, CFB = 2.2pF, IOUT = 75mA
4.1
4.05
T = 25°C
4
A
T = 85°C
3.95
A
T = –40°C
A
3.9
3.85
0.6
1
1.4
1.8
2.2
2.6
3
VIN (V)
3.4
3.8
9
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