SC4502H Semtech Corporation, SC4502H Datasheet - Page 5

• Manufacturer Part Number: SC4502H
• Description: 1.4 Amp, 2 Mhz Step-up Switching Regulator With Soft-start | Semtech
• Manufacturer: Semtech Corporation

Typical Characteristics
POWER MANAGEMENT
2005 Semtech Corp.
1.25
1.15
V
500
400
300
200
100
1.3
1.2
1.1
0.9
0.8
1.3
1.2
IN
0
1
Feedback Voltage vs Temperature
-50
-50
Quiescent Current vs Temperature
0
Switch Saturation Voltage
-25
-25
0.5
vs Switch Current
Switch Current (A)
0
0
Temperature (ºC)
Temperature (ºC)
SC4502
25
25
1
85ºC
50
50
25ºC
Not Switching
V
V
IN
IN
= 16V
= 2V
75
75
1.5
100
100
125
125
2
500
400
300
200
100
100
10
50
40
30
20
10
0
0
1
0.0
0
0
R
OSC
V
Switch Saturation Voltage
0.5
IN
vs Switching Frequency
Current in Shutdown
0.5
vs Switch Current
vs Input Voltage
5
SC4502H
Frequency (MHz)
Switch Current (A)
Input Voltage (V)
85ºC
1.0
-40ºC
5
1.5
10
1
25ºC
125ºC
V
IN
= 2V
2.0
25ºC
1.5
15
V
2.5
SHDN
= 0
3.0
20
2
1.20
1.15
1.10
1.05
1.00
1.5
1.4
1.3
1.2
1.1
1.7
1.6
1.5
1.4
1.3
1
-50
-50
-50
SC4502/SC4502H
Minimum V
V
V
-25
-25
-25
IN
IN
Shutdown Threshold
Switching Frequency
= 12V
= 2V
vs Temperature
vs Temperature
Temperature (ºC)
0
0
Temperature (ºC)
0
Temperature (ºC)
IN
25
25
25
vs Temperature
50
50
50
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R
OSC
75
75
75
= 7.68K
V
IN
100
100
100
= 2V
125
125
125