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MIC2267YML Datasheet(PDF) 6 Page - Micrel Semiconductor

Part # MIC2267YML
Description  Input Current Limiting Synchronous Buck Regulator
PDF  19 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2267YML Datasheet(HTML) 6 Page - Micrel Semiconductor

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Micrel Inc.
MIC2267
January 2011
6
M9999-011711-A
Typical Characteristics (Continued)
Efficiency vs.
Output Current
50
55
60
65
70
75
80
85
90
95
100
00.5
11.5
2
OUTPUT CURRENT (A)
VOUT = 3.3V
VIN = 4.2V
VIN = 5.5V
Efficiency vs.
Output Current
0
10
20
30
40
50
60
70
80
90
100
00.5
11.5
2
OUTPUT CURRENT (A)
VOUT = 1.8V
VIN = 3.3V
VIN = 5.5V
Input Current Limit
vs. Input Voltage
0.600
0.650
0.700
0.750
0.800
2.53
3.54
4.55
5.56
INPUT VOLTAGE (V)
RLIM = 107K
VFB = 0.5V
Input Current Limit
vs. Temperature
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
-50 -30 -10 10 30 50 70 90 110 130
TEMPERATURE (°C)
ILIM @ 3.3Vin
ILIM @ 5Vin
VOUT = 1.8V
Current Limit
vs. RLIMIT
100
1000
10000
10
100
1000
RLIMIT (kΩ)
VIN = 5V
VOUT = 3.3V
Switching Frequency
vs. RFREQ
0
200
400
600
800
1000
1200
1400
1600
1800
0
50
100
150
200
250
300
RFREQ (kΩ)
VIN = 5V
TAMB = 25°C



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