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MIC2205-1.3YML Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC2205-1.3YML
Description  2MHz PWM Synchronous Buck Regulator with LDO Standby Mode
Download  16 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2205-1.3YML Datasheet(HTML) 5 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2205
April 2005
5
M9999-041105
www.micrel.com
Typical Characteristics – PWM Mode
-20
-10
0
10
20
30
40
50
60
70
80
1E+2
1E+3
1E+4
1E+5
1E+6
FREQUENCY (Hz)
Bode Plot
V
IN =3.6V
V
OUT =1.8V
L= 2.2 H
C
OUT =2.2 F
C
FF = 120pF
100k
1M
10k
100
1k
Phase
Gain
-36
-18
0
18
36
54
72
90
108
126
144
50
55
60
65
70
75
80
85
90
95
100
0
100
200
300
400
OUTPUT CURRENT (mA)
2.5VOUT Efficiency
V
IN =3.6V
V
IN =4.2V
V
IN =3V
50
55
60
65
70
75
80
85
90
95
100
0
100 200 300 400 500 600
OUTPUT CURRENT (mA)
1.8VOUT Efficiency
V
IN =3.6V
V
IN =4.2V
V
IN =3V
50
55
60
65
70
75
80
85
90
95
0
100
200
300
400
OUTPUT CURRENT (mA)
1.5VOUT Efficiency
V
IN =3.6V
V
IN =4.2V
V
IN =3V
50
55
60
65
70
75
80
85
90
95
0
100
200
300
400
OUTPUT CURRENT (mA)
1.38VOUT Efficiency
V
IN =3.6V
V
IN =4.2V
V
IN =3V
50
55
60
65
70
75
80
85
90
95
0
100
200
300
400
OUTPUT CURRENT (mA)
1.2VOUT Efficiency
V
IN =3.6V
V
IN =4.2V
V
IN =3V
50
55
60
65
70
75
80
85
90
0
100 200 300 400 500 600
OUTPUT CURRENT (mA)
1.0VOUT Efficiency
V
IN =3.6V
V
IN =4.2V
V
IN =3V
0.990
0.992
0.994
0.996
0.998
1.000
1.002
1.004
1.006
1.008
1.010
0
100
200
300
400
OUTPUT CURRENT (mA)
Load Regulation
V
IN =3.6V
LowQ = V
IN
0
100
200
300
400
500
600
700
800
900
2.7
3.4
4.1
4.8
5.5
SUPPLY VOLTAGE (V)
Quiescent Current
vs. Supply Voltage
V
IN =3.6V
V
FB =0.9V
1.8
1.85
1.9
1.95
2
2.05
2.1
2.15
2.2
-40 -20 0
20 40 60 80 100 120
TEMPERATURE (°C)
Frequency
vs. Temperature
V
IN =3.6V
0
200
400
600
800
1000
1200
2.7
3.4
4.1
4.8
5.5
SUPPLY VOLTAGE (V)
Peak Current Limit
vs. Supply Voltage
LowQ = V
IN
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
2.7
3.4
4.1
4.8
5.5
SUPPLY VOLTAGE (V)
Enable Threshold
vs. Supply Voltage
LowQ = V
IN


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