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Компоненты Описание
SC4503 Просмотр технического описания (PDF) - Semtech Corporation
Номер в каталоге
Компоненты Описание
производитель
SC4503
1.3MHz Step-Up Switching Regulator with 1.4A Switch
Semtech Corporation
SC4503 Datasheet PDF : 22 Pages
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POWER MANAGEMENT
Typical Characteristics
FB Voltage vs Temperature
1.30
1.25
1.20
1.15
1.10
-50 -25
0 25 50 75
Temperature (°C)
100 125
V
IN
Under-voltage Lockout
Threshold vs Temperature
2.6
2.4
2.2
2.0
1.8
1.6
-50 -25
0 25 50 75 100 125
Temperature (°C)
Switch Saturation Voltage
vs Switch Current
400
125°C
300
25°C
200
100
-40°C
0
0.0
0.5
1.0
1.5
2.0
Switch Current (A)
2007 Semtech Corp.
6
SC4503
Switching Frequency
vs Temperature
1.5
1.4
1.3
1.2
1.1
1.0
-50 -25
0 25 50 75 100 125
Temperature (°C)
Switch Current Limit
vs Temperature
2.0
1.8
1.6
1.4
1.2
1.0
-50 -25
V
SHDN/SS
= 3V
0 25 50 75 100 125
Temperature (°C)
V
IN
Quiescent Current
vs Temperature
0.80
0.75
0.70
0.65
0.60
-50 -25
V
FB
= 1.5V
0 25 50 75 100 125
Temperature (°C)
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