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)
Load Regulation (VOUT = 1.8V)
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, TA = 25οC
1.85
Load Regulation (VOUT = 1.8V)
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, VIN = 1.1V
1.85
1.84
1.84
1.83
1.83
1.82
1.82
1.81
1.81
1.8
T = –40°C
1.8
A
1.79
V = 0.7V
IN
V = 1.1V
IN
V = 1.5V
IN
T = 25°C
A
1.79
1.78
1.77
L 0
50 100 150 200 250 300 350 400 450 500
IOUT (mA)
IA Load Regulation (VOUT = 3.3V)
FB grounded, L = 4.7μH, TA = 25οC
3.34
T 3.32
V = 3.0V
N IN
3.3
E 3.28
V = 2.0V
IN
3.26
ID 3.24
V = 1.0V
IN
F 3.22
N 3.2
0 50 100 150 200 250 300 350 400 450 500
IOUT (mA)
CO Load Regulation vs. (VOUT = 4.0V)
T = 85°C
1.78
A
1.77
0
50 100 150 200 250 300 350 400 450
IOUT (mA)
Load Regulation (V = 3.3V)
OUT
FB grounded, L = 4.7μH, VIN = 1.5V
3.34
TA = 85°C
3.32
3.3
3.28
3.26
3.24 T = –40°C
A
T = 25°C
A
3.22
TA = 85°C
3.2
0 50 100 150 200 250 300 350 400 450
IOUT (mA)
Load Regulation (VOUT = 4.0V)
500
500
R1 = 1.37MΩ, R2 = 590kΩ, L = 4.7μH, TA = 25οC
R1 = 1.37MΩ, R2 = 590kΩ, L = 4.7μH, VIN = 2.4V
4.05
4.05
T = 85°C
A
4
4
T = 25°C
A
V = 3.0V
IN
3.95
3.95
T = –40°C
A
V = 1.0V
3.9
IN
V = 2.0V
IN
3.85
0
50 100 150 200 250 300 350 400 450 500
IOUT (mA)
3.9
3.85
0
T = –40°C
A
T = 25°C
A
T = 85°C
A
50 100 150 200 250 300 350 400 450 500
IOUT (mA)
PRELIMINARY
6
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