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MIC2171WT Scheda tecnica(PDF) 4 Page - Micrel Semiconductor

Il numero della parte MIC2171WT
Spiegazioni elettronici  100kHz 2.5A Switching Regulator
PDF  12 Pages
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Produttore elettronici  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2171WT Scheda tecnica(HTML) 4 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2171
May 2007
4
M9999-051107
Typical Characteristics
2.3
2.4
2.5
2.6
2.7
2.8
2.9
-100
-50
0
50
100
150
Temperature (°C)
Minimum
Operating Voltage
Switch Current = 2A
0
100
200
300
400
500
600
700
800
-100
-50
0
50
100
150
Temperature (°C)
Feedback Bias Current
-5
-4
-3
-2
-1
0
1
2
3
4
5
0
1020
3040
V
IN Operating (V)
Feedback Voltage
Line Regulation
TJ =-40°C
TJ =25°C
TJ = 125°C
5
6
7
8
9
10
11
12
13
14
15
0
10
203040
V
IN Operating Voltage (V)
Supply Current
ISW=0
D.C . = 90%
D.C . = 50%
D.C . = 0%
0
10
20
30
40
50
01
23
4
Switch Current (A)
Supply Current
δ = 90%
δ = 50%
0
1
2
3
4
5
6
7
8
9
10
-100
-50
0
50
100
150
Temperature(°C)
Supply Current
V
COMP =0.6V
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
012
3
Switch Current (A)
TJ =25°C
TJ =125°C
TJ =–40°C
Switch On-Voltage
60
70
80
90
100
110
120
-50
0
50
100
150
Temperature(°C)
Oscillator Frequency
0
2
4
6
8
0
204060
80
100
Duty Cycle (%)
Current Limit
–40°C
25°C
125°C
Error Amplifier Gain
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-100
-50
0
50
100
150
Temperature(°C)
0
1000
2000
3000
4000
5000
6000
7000
1
10
100
1000
10000
Frequency (kHz)
Error Amplifier Gain
210
180
150
120
90
60
30
0
-30
1
10
100
1000
10000
Frequency (kHz)
Error Amplifier Phase



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