SC4501 Semtech Corporation, SC4501 Datasheet - Page 7

• Manufacturer Part Number: SC4501
• Description: 2MHz Step-Up Switching Regulator
• Manufacturer: Semtech Corporation

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Typical Characteristics
POWER MANAGEMENT
2005 Semtech Corp.
1.2
0.8
0.6
0.4
0.2
1.8
1.6
1.4
1.2
1
0
2
1
-50
0
V
IN
Soft-Start Charging Current
Current vs SHDN Pin Voltage
-25
-40ºC
vs Temperature
0
Temperature (ºC)
SHDN Voltage (V)
0.5
V
125ºC
25
IN
= 2V
50
1
V
75
SS
= 0.3V
-40ºC
100
125ºC
125
1.5
0.08
0.06
0.04
0.02
0.1
80
70
60
50
40
30
Transconductance vs Temperature
0
-50
0
V
IN
Current vs SHDN Pin Voltage
-25
0.2
0
Temperature (ºC)
SHDN Voltage (V)
0.4
7
25
0.6
50
V
IN
0.8
= 2V
75
V
IN
1
100
= 2V
25ºC
125
1.2
-3
-4
-5
-6
-50
-25
Shutdown Pin Current
vs Temperature
0
Temperature (ºC)
25
V
V
IN
IN
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= 2V
= 12V
50
SC4501
V
SHDN
75
= 1.25V
100
125