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SC2620 Datasheet(PDF) 6 Page - Semtech Corporation

Part # SC2620
Description  Dual 2A, 30V Step-down Regulator with Programmable Frequency up to 1.4MHz
PDF  26 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC2620 Datasheet(HTML) 6 Page - Semtech Corporation

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 2006 Semtech Corp.
www.semtech.com
SC2620
POWER MANAGEMENT
Typical Characteristics
Feedback Voltage vs Temperature
0.97
0.98
0.99
1.00
1.01
1.02
-50 -25
0
25
50
75
100 125
Temperature (°C)
VIN = 5V
Switch Saturation Voltage
vs Switch Current
100
200
300
400
0.0
0.5
1.0
1.5
2.0
2.5
Switch Current (A)
25°C
125°C
-40°C
SS Shutdown Threshold
vs Temperature
0.20
0.25
0.30
0.35
0.40
-50-25
0
25
50
75100 125
Temperature (°C)
VSS1 = VSS2
Boost Pin Current
vs Switch Current
0
20
40
60
80
0.0
0.5
1.0
1.5
2.0
2.5
Switch Current (A)
125°C
-40°C
VIN = 5V
VBST = 8V
Frequency Setting Resistor
vs Channel Frequency
10
100
1000
0.0
0.5
1.0
1.5
Frequency (MHz)
VIN = 5V
Normalized Channel
Frequency vs Temperature
0.90
0.95
1.00
1.05
1.10
-50
-25
0
25
50
75
100 125
Temperature (°C)
600kHz
1.4MHz
Switch Current Limit
vs Temperature
2.6
2.8
3.0
3.2
3.4
3.6
-50
-25
0
25
50
75
100 125
Temperature (°C)
VIN Shutdown Current vs VIN
0
50
100
150
200
0
5
10
15
20
25
30
VIN (V)
TA = 25°C
VSS1 = VSS2 = 0
VIN Quiescent Current vs VIN
0
1
2
3
4
0
5
10
15
20
25
30
VIN (V)
TA = 25°C



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