SC120(2009) 데이터 시트보기 (PDF) - Semtech Corporation
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SC120 Datasheet PDF : 21 Pages
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SC120
Typical Characteristics (continued)
Temperature Reg. — PSAVE Mode (VOUT = 1.8V)
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, IOUT = 4mA
1.85
1.84
V = 1.5V
IN
Temperature Reg. — PWM Mode (V = 1.8V)
OUT
R1 = 499kΩ, R2 = 1MΩ, L = 4.7μH, IOUT = 45mA
1.85
1.84
1.83
1.83
V = 0.7V
IN
1.82
1.82
V = 1.1V
IN
1.81
1.81
V = 1.5V
IN
1.8
1.8
V = 1.1V
IN
1.79
1.79
V = 0.7V
IN
1.78
1.77
-50
-25
0
25
50
75
100
L Junction Temperature (oC)
IA Temperature Reg. — PSAVE Mode (VOUT = 3.3V)
FB grounded, L = 4.7μH, IOUT = 4mA
3.34
T V = 3.0V
IN
3.32
V = 1.0V
N IN
3.3
E 3.28
V = 2.0V
IN
ID 3.26
3.24
F 3.22
N 3.2
-50
-25
0
25
50
75
100
Junction Temperature (oC)
CO Temperature Reg. — PSAVE Mode (VOUT = 4.0V)
1.78
1.77
-50
-25
0
25
50
75
100
Junction Temperature (oC)
Temperature Reg. — PWM Mode (V = 3.3V)
OUT
FB grounded, L = 4.7μH, IOUT = 75mA
3.34
3.32
V = 3.0V
IN
3.3
3.28
V = 2.0V
IN
3.26
V = 1.0V
IN
3.24
3.22
3.2
-50
-25
0
25
50
75
100
Junction Temperature (oC)
Temperature Reg. — PWM Mode (V = 4.0V)
OUT
R1 = 1.37MΩ, R2 = 590kΩ, L = 4.7μH, IOUT = 4mA
4.05
R1 = 1.37MΩ, R2 = 590kΩ, L = 4.7μH, IOUT = 75mA
4.05
V = 3.0V
IN
4
V = 2.0V
IN
V = 1.0V
IN
3.95
4
V = 3.0V
IN
3.95
V = 2.0V
IN
V = 1.0V
IN
3.9
3.9
3.85
-50
-25
0
25
50
75
100
Junction Temperature (oC)
3.85
-50
-25
0
25
50
75
100
Junction Temperature (oC)
PRELIMINARY
8
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