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MIC4721 Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC4721
Description  1.5A 2MHz Integrated Switch Buck Regulator
PDF  19 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC4721 Datasheet(HTML) 5 Page - Micrel Semiconductor

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Micrel, Inc.
MIC4721
May 2007
5
M9999-052907-A
Typical Characteristics
-0.10
0
0.5
1.0
1.5
2.0
OUTPUT CURRENT (A)
Load Regulation
-0.08
-0.06
-0.04
-0.02
0.00
0.02
VO = 1.8V
VIN = 3.3V
-0.050
Line Regulation
-0.045
-0.040
-0.035
-0.030
-0.025
-0.020
-0.015
-0.010
-0.005
0.000
23
45
6
INPUT VOLTAGE (V)
IOUT = 100mA
IOUT = 1.5A
VO = 1.8V
0.970
0.975
0.980
0.985
0.990
0.995
1.000
1.005
Reference Voltage
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
VIN = 3.3V
0.995
0.996
0.997
0.998
0.999
1.000
1.001
1.002
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
Reference Voltage
vs. Input Voltage
1.90
1.92
1.94
1.96
1.98
2.00
2.02
2.04
Switching Frequency
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
Switching Frequency
vs. Input Voltage
0
0.5
1.5
2.0
2.5
3.0
3.5
Quiescent Current
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
VIN = 2.5V
VIN = 3.3V
1.0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0123456
INPUT VOLTAGE (V)
Quiescent Current
vs. Input Voltage
0
20
40
60
80
100
120
140
160
180
200
Switch On-Resistance
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
RON @ 2.7VIN
RON @ 3.3VIN
RON @ 5VIN
100
110
120
130
140
150
160
170
180
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
Switch On-Resistance
vs. Input Voltage
RON @ IOUT = 1.5A
RON @ IOUT = 0.1A
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.05
1.10
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
Enable Threshold
vs. Input Voltage
Turn-off
Turn-on
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
Enable Threshold
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
Turn-off
Turn-on
VIN = 3.3V



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