Micrel, Inc.
Typical Characteristics (LDO1/LDO2)
MIC2807
LDO2 Dropout Voltage
LDO2 Load Regulation
LDO2 Line Regulation
35
vs. Output Current
2.808
2.810
30
25
20
15
10
2.806
2.804
2.802
2.805
2.800
2.795
3
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
5
0
6
V OUT = 2.8V
9 12 15 18 21 24 27 30
2.800
V IN = 3.6V
C OUT = 1μF
5 10 15 20 25 30
2.790
I OUT = 15mA
C OUT = 1μF
OUTPUT CURRENT (mA)
Power Supply Rejection
OUTPUT CURRENT (mA)
Power Supply Rejection
INPUT VOLTAGE (V)
LDO1 Dropout Voltage
90
Ratio LDO2 [I OUT =20mA]
100
Ratio LDO2 [I OUT =1mA]
65
vs. Temperature
80
90
10 I OUT = 20mA
0.01 0.1 1 10 100
10 C
0.01 0.1 1 10 100
V IN = 3.6V
-40 -20 0 20 40 60 80 100 120
70
60
50
40
30
V IN = 3.6V
20 V OUT = 2.8V
C OUT = 1μF
0
1000
80
70
60
50
40
30 V IN = 3.6V
20 V OUT = 2.8V
I OUT = 1mA
OUT = 1μF
0
1000
60
55
50
45
V OUT = 2.8V
I OUT = 150mA
FREQUENCY (kHz)
LDO1 Ground Current
FREQUENCY (kHz)
LDO1 Ground Current
TEMPERATURE (°C)
LDO1 Line Regulation
250
vs. Output Current
310
vs. Temperature
2.81
290
240
230
220
270
250
230
210
2.80
2.79
2.78
0
-40 -20 0 20 40 60 80 100 120
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
210
200
V IN = 3.6V
V OUT = 2.8V
30 60 90 120 150
OUTPUT CURRENT (mA)
Power Supply Rejection
190
150
V IN = 3.6V
170 V OUT = 2.8V
I OUT = 150mA
TEMPERATURE (°C)
Power Supply Rejection
2.77
2.76
I OUT = 100mA
C OUT = 2.2μF
INPUT VOLTAGE (V)
LDO1 Dropout Voltage
90
Ratio LDO1 [I OUT =5mA]
100
Ratio LDO1 [I OUT =100mA]
80
vs. Output Current
80
90
70
10 I OUT = 5mA
0.01 0.1 1 10 100
10 C OUT = 2.2μF
0.1 1 10 100
5
70
60
50
40
30
V IN = 3.6V
20 V OUT = 2.8V
C OUT = 2.2μF
0
FREQUENCY (kHz)
1000
8 0
70
60
50
40
30
20 V IN = 3.6V
V = 2.8V
OUT
0
FREQUENCY (kHz)
1000
60
50
40
30
20
10
0
V OUT = 2.8V
45 85 125 165 205
OUTPUT CURRENT (mA)
February 2008
8
M9999-022008-B
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