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SC4502MLTRT Datasheet(PDF) 5 Page - Semtech Corporation

Part # SC4502MLTRT
Description  1.4Amp, 2MHz Step-Up Switching Regulator with Soft-Start
Download  19 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4502MLTRT Datasheet(HTML) 5 Page - Semtech Corporation

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 2005 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC4502/SC4502H
Typical Characteristics
Feedback Voltage vs Temperature
1.15
1.2
1.25
1.3
-50
-25
0
25
50
75
100
125
Temperature (ºC)
ROSC vs Switching Frequency
1
10
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (MHz)
VIN = 2V
25ºC
Switching Frequency
vs Temperature
1.3
1.4
1.5
1.6
1.7
-50
-25
0
25
50
75
100
125
Temperature (ºC)
VIN = 12V
VIN = 2V
ROSC = 7.68K
Ω
VIN Quiescent Current vs Temperature
0.8
0.9
1
1.1
1.2
1.3
-50
-25
0
25
50
75
100
125
Temperature (ºC)
VIN = 16V
VIN = 2V
Not Switching
Shutdown Threshold
vs Temperature
1.00
1.05
1.10
1.15
1.20
-50
-25
0
25
50
75
100
125
Temperature (ºC)
VIN = 2V
VIN Current in Shutdown
vs Input Voltage
0
10
20
30
40
50
0
5
10
15
20
Input Voltage (V)
125ºC
-40ºC
VSHDN = 0
Minimum VIN vs Temperature
1
1.1
1.2
1.3
1.4
1.5
-50
-25
0
25
50
75
100 125
Temperature (ºC)
Switch Saturation Voltage
vs Switch Current
0
100
200
300
400
500
00.511.5
2
Switch Current (A)
85ºC
25ºC
SC4502
Switch Saturation Voltage
vs Switch Current
0
100
200
300
400
500
00.5
11.5
2
Switch Current (A)
25ºC
85ºC
SC4502H


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