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MIC5331 Datasheet(PDF) 4 Page - Micrel Semiconductor

Part # MIC5331
Description  Micro-Power High Performance Dual 300mA ULDO?
PDF  10 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC5331 Datasheet(HTML) 4 Page - Micrel Semiconductor

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Micrel, Inc.
MIC5331
February 2008
4
M9999-021408-A
Typical Characteristics
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
PSRR
FREQUENCY (Hz)
50mA
300mA
VIN = 2.3V
VOUT = 1.2V
COUT = 2.2µF
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
PSRR
FREQUENCY (Hz)
50mA
300mA
VIN = 2.3V
VOUT = 1.2V
COUT = 1µF
0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0
50 100 150 200 250 300
LOAD CURRENT (mA)
Dropout Voltage
vs. Load Current
VOUT = 2.8V
COUT = 1µF
0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
VOUT = 2.8V
COUT = 1µF
-40 -20 0 20 40 60 80 100 120
100mA
10mA
50mA
300mA
20
22
24
26
28
30
32
34
36
38
40
2
2.5
3
3.5
4
4.5
5
5.5
SUPPLY VOLTAGE (V)
Ground Current
vs. Supply Voltage
VOUT1 = 2.5V
VOUT2 = 1.2V
COUT1 = 1µF
COUT2 = 1µF
IOUT1 = 300mA
IOUT2 = 300mA
Dual LDO Enabled
Single LDO Enabled
25
27
29
31
33
35
37
39
41
0
50 100 150 200 250 300
LOAD CURRENT (mA)
Ground Current
vs. Load Current
VIN = VOUT + 1V
VOUT1 = 2.5V
VOUT2 = 1.2V
COUT1 = 1µF
COUT2 = 1µF
Dual LDO Enabled
Single LDO Enabled
30
33
36
39
42
45
Ground Current
vs. Temperature
EN1 = EN2 = VIN
VIN = VOUT + 1V
VOUT = 2.8V
COUT = 1µF
100mA
300mA
10mA
TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100 120
2.800
2.804
2.808
2.812
2.816
2.820
0
50 100 150 200 250 300
LOAD CURRENT (mA)
Output Voltage
vs. Load Current
VIN = VOUT + 1V
VOUT = 2.8V
COUT = 1µF
2.5
2.6
2.7
2.8
2.9
3.0
Output Voltage
vs. Temperature
VIN = VOUT + 1V
VOUT = 2.8V
COUT = 1µF
TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100 120
350
400
450
500
550
600
650
700
750
800
850
2
2.5
3
3.5
4
4.5
5
5.5
SUPPLY VOLTAGE (V)
Current Limit
vs. Supply Voltage
CIN = 1µF
COUT = 1µF
0
0.2
0.4
0.6
0.8
1.2
1.0
Output Noise
Spectral Density
10
1K
10K 100K
FREQUENCY (Hz)
100
1M
VIN = VOUT + 1V
VOUT = 2.8V
COUT = 1µF
Load = 50mA



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