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Part Name
Description
MAQ5280 View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
MAQ5280
25mA, 120V, Low IQ, High PSRR LDO
Micrel
MAQ5280 Datasheet PDF : 14 Pages
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Micrel, Inc.
Typical Characteristics
Power Supply
Rejection Ratio
120
100µA
100
80
10mA
60
25mA
1mA
40
20
010
100 1000 10000 100000
FREQUENCY (Hz)
1.225
Feedback Voltage
vs. Temperature
1.224
1.223
1.222
1.221
Load=100µA
1.220
1.219
Load=25mA
1.218
1.217
1.216
1.21-540
-20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Dropout Voltage
vs. Output Current
1.4
1.2
1.0
0.8
0.6
0.4
0.2
00
V
IN
= 4.5V
C
IN
= 0.18µF
C
OUT
= 2.2µF
5 10 15 20 25
OUTPUT CURRENT (mA)
Current Limit
vs. Temperature
80
77
74
71
V
IN
=12V
68
65
62
59
V
IN
=4.5V
56
53
5-040
-20 0 20 40 60 80 100 120
TEMPERATURE (°C)
October 2008
3.155
3.154
3.153
3.152
3.151
3.150
3.149
3.148
3.147
3.146
3.1450
Output Voltage
vs. Input Voltage
V
OUT
= 3.15V
C
IN
= 0.18µF
C
OUT
= 2.2µF
Load = 100µA
20 40 60 80 100 120
INPUT VOLTAGE (V)
Ground Current
vs. Output Current
300
250
200
150
100
50
00
–40°C
120°C
25°C
V
IN
= 12V
V
OUT
= 5V
C
IN
= 0.18µF
C
OUT
= 2.2µF
5 10 15 20 25
OUTPUT CURRENT (mA)
Dropout Voltage
vs. Temperature
1.2
1.1
Load=25mA
1.0
0.9
0.8
0.7
Load=10mA
0.6
0.5
0.4
0.3
Load=100µA
0.2
0.1
-040 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Adjust Pin Current
vs. Temperature
3.40
3.37
3.34
3.31
3.28
3.25
3.22
3.19
3.16
3.13
3.1-040
-20
0
20 40
V
EN
= 12V
60 80 100 120
TEMPERATURE (°C)
5
MAQ5280
5.010
5.008
5.006
5.004
5.002
5.000
4.998
4.996
4.994
4.992
4.9900
Output Voltage
vs. Load Current
EN = V
BYP
V
IN
= 12V
V
OUT
= 5V
C
IN
= 0.18µF
C
OUT
= 2.2µF
5 10 15 20 25
LOAD CURRENT (mA)
Ground Current
vs. Temperature
35
V
IN
=120V
32
V
IN
=12V
29
26
V
IN
=4.5V
23
EN = V
IN
Load = 100µA
2-040
-20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Current Limit
vs. Input Voltage
79
76
73
70
67
64
61
58
V
OUT
= 3.15V
C
OUT
= 2.2µF
550
20 40 60 80 100 120
INPUT VOLTAGE (V)
Enable Threshold
vs. Temperature
1.1
Load = 100µA
1.0
0.9
0.8
0.7
0.6
0.5
0.-440
-20 0 20 40 60 80 100 120
TEMPERATURE (°C)
M9999-102708-B
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