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MIC5280 Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC5280
Description  25mA, 120V, Low IQ, High PSRR LDO
PDF  14 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC5280 Datasheet(HTML) 5 Page - Micrel Semiconductor

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Micrel, Inc.
MIC5280
January 2009
5
M9999-012209-A
Typical Characteristics
0
20
40
60
80
100
120
10
100
1000
10000 100000
FREQUENCY (Hz)
Power Supply
Rejection Ratio
1mA
100µA
25mA
10mA
02
Output Voltage
vs. Input Voltage
3.145
3.146
3.147
3.148
3.149
3.150
3.151
3.152
3.153
3.154
3.155
0406080
100 120
INPUT VOLTAGE (V)
VOUT = 3.15V
CIN = 0.18µF
COUT = 2.2µF
Load = 100µA
4.990
4.992
4.994
4.996
4.998
5.000
5.002
5.004
5.006
5.008
5.010
0
5
10
15
20
25
LOAD CURRENT (mA)
Output Voltage
vs. Load Current
EN = VBYP
VIN = 12V
VOUT = 5V
CIN = 0.18µF
COUT = 2.2µF
1.215
1.216
1.217
1.218
1.219
1.220
1.221
1.222
1.223
1.224
1.225
Feedback Voltage
vs. Temperature
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Load=100µA
Load=25mA
0
50
100
150
200
250
300
0
5
10
15
20
25
OUTPUT CURRENT (mA)
Ground Current
vs. Output Current
VIN = 12V
VOUT = 5V
CIN = 0.18µF
COUT = 2.2µF
120°C
–40°C
25°C
20
23
26
29
32
35
Ground Current
vs. Temperature
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
EN = VIN
Load = 100µA
VIN=120V
VIN=12V
VIN=4.5V
0
0.2
0.4
0.6
0.8
1.2
1.4
0
5
10
15
20
25
OUTPUT CURRENT (mA)
1.0
Dropout Voltage
vs. Output Current
VIN = 4.5V
CIN = 0.18µF
COUT = 2.2µF
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Dropout Voltage
vs. Temperature
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Load=100µA
Load=10mA
Load=25mA
55
58
61
64
67
70
73
76
79
0
20
40
60
80 100 120
INPUT VOLTAGE (V)
VOUT = 3.15V
COUT = 2.2µF
Current Limit
vs. Input Voltage
50
53
56
59
62
65
68
71
74
77
80
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
VIN=4.5V
VIN=12V
Current Limit
vs. Temperature
3.10
3.13
3.16
3.19
3.22
3.25
3.28
3.31
3.34
3.37
3.40
Adjust Pin Current
vs. Temperature
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
VEN = 12V
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
Enable Threshold
vs. Temperature
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Load = 100µA



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