SC4503 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC4503' PDF : 22 Pages View PDF
POWER MANAGEMENT
Typical Characteristics (Cont.)
Shutdown Pin Current
vs Shutdown Pin Voltage
70
-40°C
60
50
25°C
40
30
20
85°C
10
0
0
5
10
15
20
Shutdown Pin Voltage (V)
1000
800
VIN Quiescent Current
vs Shutdown Pin Voltage
VIN = 3V
VFB = 1.5V
600 125°C
400
25°C
200
-40°C
0
0.0
0.5
1.0
1.5
2.0
Shutdown Pin Voltage (V)
Switch Current Limit
vs Shutdown Pin Voltage
2.5
D = 50%
2.0
1.5
-40°C
25°C
1.0
85°C
0.5
0.0
1.2
1.4
1.6
1.8
2.0
Shutdown Pin Voltage (V)
SC4503
Shutdown Pin Current
vs Shutdown Pin Voltage
50
40
-40°C
25°C
30
20
10
85°C
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Shutdown Pin Voltage (V)
Shutdown Pin
Thresholds vs Temperature
1.5
Switching
1.0
0.5
Shutting Down To IIN < 1µA
0.0
-50 -25 0 25 50 75 100 125
Temperature (°C)
Switch Current Limit
vs Shutdown Pin Voltage
2.5
D = 80%
2.0
1.5
-40°C
1.0
25°C
0.5
85°C
0.0
1.2
1.4
1.6
1.8
2.0
Shutdown Pin Voltage (V)
2007 Semtech Corp.
7
www.semtech.com
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