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MIC4680 Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC4680
Description  1A 200kHz SuperSwitcher??Buck Regulator Final Information
PDF  16 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC4680 Datasheet(HTML) 5 Page - Micrel Semiconductor

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June 2000
5
MIC4680
MIC4680
Micrel
4.96
4.98
5.00
5.02
5.04
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4
OUTPUT CURRENT (A)
Load Regulation
V
IN = 12V
V
OUT = 5V
Typical Characteristics
4.96
4.97
4.98
4.99
5.00
5.01
5.02
5.03
5.04
5.05
5.06
0
5
10
15
20
25
30
35
INPUT VOLTAGE (V)
Line Regulation
I
OUT = 1.0A
0
20
40
60
80
100
0
5
10
15
20
25
30
35
INPUT VOLTAGE (V)
Shutdown Current
vs. Input Voltage
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-50 -25
0
25
50
75 100 125
TEMPERATURE (
°C)
Shutdown Current
vs. Temperature
V
IN = 12V
V
SHDN = VIN
0
1
2
3
4
5
6
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
OUTPUT CURRENT (A)
Current Limit
Characteristic
V
IN = 12V
196
197
198
199
200
201
202
0
5
10
15
20
25
30
35
SUPPLY VOLTAGE (V)
Frequency vs.
Supply Voltage
180
190
200
210
220
-50 -25
0
25
50
75 100 125
TEMPERATURE (
°C)
Frequency vs.
Temperature
1.228
1.230
1.232
1.234
1.236
1.238
1.240
1.242
-50 -25 0
25 50 75 100 125 150
TEMPERATURE (
°C)
Feedback Voltage
vs. Temperature
V
IN = 12V
V
OUT = 5V
I
OUT = 1A
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
-50 -25
0
25
50
75 100 125
TEMPERATURE (
°C)
Saturation Voltage
vs. Temperature
V
IN = 12V
V
OUT = 5V
I
LOAD = 1A
0
10
20
30
40
50
60
70
80
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4
OUTPUT CURRENT (A)
3.3V Output
Efficiency
12V
6V
24V
0
10
20
30
40
50
60
70
80
90
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4
OUTPUT CURRENT (A)
5V Output
Efficiency
7V
12V
24V
0
10
20
30
40
50
60
70
80
90
100
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
OUTPUT CURRENT (A)
12V Output
Efficiency
15V
24V



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