SC120 데이터 시트보기 (PDF) - Semtech Corporation
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SC120 Datasheet PDF : 32 Pages
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Typical Characteristics — V = 1.8V
OUT
Efficiency vs. I (V = 1.8V)
OUT OUT
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, TA = 25οC
100
V = 1.6V
90
IN
80
70
60
V = 0.8V
IN
50
40
30
V = 1.2V
IN
20
10
0
0.1 0.2
0.5 1
2
5 10 20
IOUT (mA)
50 100 200
Load Regulation (V = 1.8V)
OUT
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, TA = 25οC
1.84
1.82
1.8
1.78
1.76
0
V = 0.8V
IN
50
V = 1.6V
IN
VIN = 1.2V
100
150
200
250
IOUT (mA)
Line Regulation — PSAVE Mode (VOUT = 1.8V)
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, IOUT = 5mA
1.84
T = 85°C
A
1.82
T = –40°C
A
T = 25°C
A
1.8
1.78
1.76
0.7 0.8 0.9 1
1.1 1.2 1.3 1.4 1.5 1.6
VIN (V)
SC120
Efficiency vs. I (V = 1.8V)
OUT OUT
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, VIN = 1.2V
100
90
T = –40°C
A
80
70
T = 85°C
A
60
50
40
T = 25°C
30
A
20
10
0
0.1 0.2
0.5 1
2
5 10 20
IOUT (mA)
50 100 200
Load Regulation (VOUT = 1.8V)
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, VIN = 1.2V
1.84
1.82
T = 85°C
A
1.8
1.78
T = –40°C
A
1.76
0
50
T = –40°C
A
T = 25°C
A
T = 85°C
A
100
150
200
250
IOUT (mA)
Line Regulation — PWM Mode (VOUT = 1.8V)
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, IOUT = 35mA
1.84
1.82
1.8
T = –40°C
A
1.78
T = 85°C
A
1.76
0.7
T = 25°C
A
0.8 0.9 1
1.1 1.2 1.3 1.4 1.5 1.6
VIN (V)
5
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