SC4503 Semtech Corporation, SC4503 Datasheet - Page 7

• Manufacturer Part Number: SC4503
• Description: 1.3MHz Step-Up Switching Regulator
• Manufacturer: Semtech Corporation

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 2007 Semtech Corp.
POWER MANAGEMENT
Typical Characteristics (Cont.)
1000
800
600
400
200
2.5
2.0
1.5
1.0
0.5
0.0
70
60
50
40
30
20
10
0
0
0.0
1.2
0
V
125° C
IN
D = 50%
25° C
vs Shutdown Pin Voltage
vs Shutdown Pin Voltage
vs Shutdown Pin Voltage
= 3V
Shutdown Pin Voltage (V)
Shutdown Pin Voltage (V)
Shutdown Pin Voltage (V)
Shutdown Pin Current
V
-40° C
Switch Current Limit
IN
0.5
1.4
5
85° C
Quiescent Current
25° C
10
1.0
1.6
25° C
-40° C
V
FB
-40° C
15
1.5
1.8
= 1.5V
85° C
20
2.0
2.0
7
1.5
1.0
0.5
0.0
2.5
2.0
1.5
1.0
0.5
0.0
50
40
30
20
10
0
0.0
1.2
-50
Thresholds vs Temperature
D = 80%
-25
vs Shutdown Pin Voltage
0.5
vs Shutdown Pin Voltage
Shutdown Pin Voltage (V)
Shutdown Pin Voltage (V)
Shutdown Pin Current
25° C
Switch Current Limit
1.4
-40° C
Shutting Down To I
Temperature (° C)
0
Shutdown Pin
1.0
Switching
25
-40° C
1.5
1.6
50
85° C
2.0
75
IN
1.8
< 1 µ A
2.5
25° C
100 125
85° C
3.0
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SC4503
2.0