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SC2441AEVB датащи(PDF) 16 Page - Semtech Corporation

номер детали SC2441AEVB
подробное описание детали  1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter
PDF  37 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC2441AEVB датащи(HTML) 16 Page - Semtech Corporation

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 2006 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC2441A
Typical Characteristics
Phase Shift vs Temperature
0
45
90
135
180
225
-50
-25
0
25
50
75
100
125
Temperature (°C)
ROSC = 66.5KW
R2 = 31.6KW
R2 = 41.2KW
R2 = 61.9KW
R2 = 121KW
fSYNC = 300KHz
Phase Shift vs Temperature
0
45
90
135
180
225
-50
-25
0
25
50
75
100
125
Temperature (°C)
ROSC = 40.2KW
R2 = 36.5KW
R2 = 47.5KW
R2 = 71.5KW
R2 = 143KW
fSYNC = 500KHz
Phase Shift vs Temperature
0
45
90
135
180
225
-50
-25
0
255075
100
125
Temperature (°C)
fSYNC = 400KHz
R2 = 34.8KW
R2 = 46.4KW
R2 = 68.1KW
R2 = 140KW
ROSC = 51.1KW
Upper Gate Driver Transition Time vs Load
Capacitance
0
20
40
60
80
100
01
10
Load Capacitance (nF)
VCC = 12V
tr
tf
25°C
Upper Gate Driver Transition Time vs Load
Capacitance
0
20
40
60
80
100
01
10
Load Capacitance (nF)
VCC = 5V
tr
tf
25°C
Percentage Deviation In
Phase Shift vs Temperature
-25
-20
-15
-10
-5
0
5
10
15
20
25
-50
-25
0
25
50
75
100
125
Temperature (°C)
ROSC = 40.2KW
R2 = 36.5KW
R2 = 47.5KW
R2 = 71.5KW
R2 = 143KW
fSYNC = 500KHz
Percentage Deviation In
Phase Shift vs Temperature
-60
-50
-40
-30
-20
-10
0
10
20
30
-50
-25
0
25
50
75
100
125
Temperature (°C)
ROSC = 66.5KW
R2 = 31.6KW
R2 = 41.2KW
R2 = 61.9KW
R2 = 121KW
fSYNC = 300KHz
Percentage Deviation In
Phase Shift vs Temperature
-20
-10
0
10
20
-50
-25
0
255075
100
125
Temperature (°C)
fSYNC = 400KHz
ROSC = 51.1KW
R2 = 34.8KW
R2 = 46.4KW
R2 = 68.1KW
R2 = 140KW



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