SC120 데이터 시트보기 (PDF) - Semtech Corporation
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SC120 Datasheet PDF : 32 Pages
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Typical Characteristics — V = 3.3V
OUT
Efficiency vs. I (V = 3.3V)
OUT OUT
FB grounded, L = 4.7μH, TA = 25οC
100
90 VIN = 3.0V
80
70
VIN = 1.0V
60
50
V = 2.0V
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 = 3.3V)
OUT
FB grounded, L = 4.7μH, TA = 25οC
3.4
3.36
3.32
V = 3.0V
IN
3.28
3.24 V = 1.0V
IN
VIN = 2.0V
3.2
0
50
100
150
200
250
300
350
400
IOUT (mA)
Line Regulation — PSAVE Mode (V = 3.3V)
OUT
FB grounded, L = 4.7μH, IOUT = 5mA
3.4
3.36
T = 85°C
A
3.32
T = 25°C
A
3.28
T = –40°C
A
3.24
3.2
0.6
1
1.4
1.8
2.2
2.6
3
3.4
VIN (V)
SC120
Efficiency vs. I (V = 3.3V)
OUT OUT
FB grounded, L = 4.7μH, VIN = 2V
100
T = –40°C
A
90
80
T = 85°C
A
70
60
50
40
T = 25°C
A
30
20
10
0
0.1 0.2 0.5 1 2
5 10 20
IOUT (mA)
50 100 200
Load Regulation (VOUT = 3.3V)
FB grounded, L = 4.7μH, VIN = 2V
3.4
3.36 T = 85°C
A
3.32
T = –40°C
A
3.28
T = –40°C
A
3.24
T = 85°C
A
TA = 25°C
3.2
0
50
100
150
200
250
300
350
400
IOUT (mA)
Line Regulation — PWM Mode (VOUT = 3.3V)
FB grounded, L = 4.7μH, IOUT = 75mA
3.4
3.36
3.32
T = –40°C
A
3.28
T = 85°C
A
3.24
T = 25°C
A
3.2
0.6
1
1.4
1.8
2.2
2.6
3
3.4
VIN (V)
7
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