SC120(2009) Просмотр технического описания (PDF) - Semtech Corporation
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SC120 Datasheet PDF : 21 Pages
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SC120
Typical Characteristics (continued)
Startup Max. Load Current vs. V (V = 1.8V)
IN OUT
R1 = 499kΩ, R2 = 1MΩ
50
Startup Min. Load Resistance vs. VIN (VOUT = 1.8V)
R1 = 499kΩ, R2 = 1MΩ
160
140
40
120
T = 25°C
A
30
T = 85°C
A
100
T = –40°C
A
80
20
60
TA = 85°C
T = –40°C
40
10
A
T = 25°C
A
0
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
L VIN (V)
IA Startup Max. Load Current vs. V (V = 3.3V)
IN OUT
FB grounded
90
T 80
70
N 60
E T = 85°C
50
A
40
ID 30
TA = –40°C
20
F 10
N 0
0.5
T = 25°C
A
0.75 1
1.25 1.5 1.75 2
VIN (V)
2.25 2.5 2.75 3
CO Startup Max. Load Current vs. VIN (VOUT = 4.0V)
20
0
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
VIN (V)
Startup Min. Load Resistance vs. VIN (VOUT = 3.3V)
FB grounded
160
140
120
T = 25°C
A
100
T = –40°C
A
80
60
T = 85°C
A
40
20
0
0.5 0.75 1
1.25 1.5 1.75 2
VIN (V)
2.25 2.5 2.75 3
Startup Min. Load Resistance vs. VIN (VOUT = 4.0V)
R1 = 1.37MΩ, R2 = 590kΩ
100
R1 = 1.37MΩ, R2 = 590kΩ
160
80
T = 85°C
A
140
T = 25°C
A
120
60
40
TA = 25°C
20
T = –40°C
A
100
80
60
40
T = 85°C
A
20
T = –40°C
A
0
0.5
1
1.5
2
2.5
3
VIN (V)
3.5
4
0
0.5
1
1.5
2
2.5
3
VIN (V)
3.5
4
PRELIMINARY
9
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