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SC4503WLTRT Datasheet(PDF) 7 Page - Semtech Corporation

Part # SC4503WLTRT
Description  1.3MHz Step-Up Switching Regulator with 1.4A Switch
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4503WLTRT Datasheet(HTML) 7 Page - Semtech Corporation

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7
 2007 Semtech Corp.
www.semtech.com
SC4503
POWER MANAGEMENT
Switch Current Limit
vs Shutdown Pin Voltage
0.0
0.5
1.0
1.5
2.0
2.5
1.2
1.4
1.6
1.8
2.0
Shutdown Pin Voltage (V)
25°C
-40°C
85°C
D = 50%
Switch Current Limit
vs Shutdown Pin Voltage
0.0
0.5
1.0
1.5
2.0
2.5
1.2
1.4
1.6
1.8
2.0
Shutdown Pin Voltage (V)
25°C
-40°C
85°C
D = 80%
Shutdown Pin
Thresholds vs Temperature
0.0
0.5
1.0
1.5
-50
-25
0
255075
100 125
Temperature (°C)
Switching
Shutting Down To IIN < 1µA
Shutdown Pin Current
vs Shutdown Pin Voltage
0
10
20
30
40
50
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Shutdown Pin Voltage (V)
25°C
-40°C
85°C
Shutdown Pin Current
vs Shutdown Pin Voltage
0
10
20
30
40
50
60
70
0
5
10
15
20
Shutdown Pin Voltage (V)
25°C
-40°C
85°C
VIN Quiescent Current
vs Shutdown Pin Voltage
0
200
400
600
800
1000
0.0
0.5
1.0
1.5
2.0
Shutdown Pin Voltage (V)
25°C
-40°C
125°C
VIN = 3V
VFB = 1.5V
Typical Characteristics (Cont.)


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