SC4503 Semtech Corporation, SC4503 Datasheet - Page 6

• 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
1.30
1.25
1.20
1.15
1.10
400
300
200
100
2.6
2.4
2.2
2.0
1.8
1.6
0
-50
-50
0.0
FB Voltage vs Temperature
Threshold vs Temperature
-25
V
-25
Switch Saturation Voltage
IN
Under-voltage Lockout
0.5
vs Switch Current
Temperature (° C)
Temperature (° C)
Switch Current (A)
0
0
-40° C
25° C
25
25
1.0
125° C
50
50
75
75
1.5
100 125
100 125
2.0
6
0.80
0.75
0.70
0.65
0.60
1.5
1.4
1.3
1.2
1.1
1.0
2.0
1.8
1.6
1.4
1.2
1.0
-50
-50
-50
-25
-25
-25
V
Switching Frequency
Switch Current Limit
IN
Temperature (° C)
Temperature (° C)
vs Temperature
Temperature (° C)
0
vs Temperature
0
vs Temperature
0
Quiescent Current
25
25
25
50
50
V
50
SHDN/SS
V
75
FB
75
75
= 1.5V
= 3V
100 125
100 125
100 125
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SC4503