SC2441AEVB Просмотр технического описания (PDF) - Semtech Corporation
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производитель
SC2441AEVB
Semtech Corporation
SC2441AEVB Datasheet PDF : 37 Pages
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POWER MANAGEMENT
Typical Characteristics
Step-down Channel Feedback
vs Temperature
0.55
0.53
0.51
0.49
0.47
0.45
-50 -25
VIN = 3V VCC = 8V
0 25 50 75
Temperature (°C)
100 125
Percenatge Frequency Deviation
5
From Nominal vs Temperature
4
ROSC = 66.5KW
3
2
1
ROSC = 40.2KW
0
-1
-2
-3
-4
-5
-50
ROSC = 51.1KW
-25 0 25 50 75
Temperature (°C)
100 125
Amplifier Transconductance vs Temperature
400
380
360
340
320
300
280
260
240
220
200
-50 -25
0 25 50 75 100 125
Temperature (°C)
SC2441A
Step-down Channel Switching Frequency
650
v s Temperature
ROSC = 40.2KW
600
550
ROSC = 51.1KW
500
450
ROSC = 66.5KW
400
350
-50 -25
0 25 50 75
Temperature (°C)
100 125
Feedback Pin Input Bias Current vs
Temperature
400
350
VCOMP2 = 3V Channel 2
300
250
200
150
VCOMP1 = 3V Channel 1
100
50
0
-50 -25
0 25 50 75 100 125
Temperature (°C)
Amplifier Open Loop Gain vs Temperature
80
79
78
77
76
75
74
73
72
71
70
-50 -25
0 25 50 75 100 125
Temperature (°C)
2006 Semtech Corp.
12
www.semtech.com
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