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MIC5311 Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC5311
Description  LowQ??Mode Dual 300mA LDO
PDF  11 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC5311 Datasheet(HTML) 5 Page - Micrel Semiconductor

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Micrel, Inc.
MIC5311
March 2006
5
M9999-032706
(408) 955-1690
Typical Characteristics
0
10
20
30
40
50
60
70
80
90
FREQUENCY (Hz)
Ripple Rejection
vs. I
LOAD (Normal Mode)
150mA
50mA
300mA
10
100
1k
10k
1M
100k
V
OUT=1.85V
IN=VOUT+1V
=
C
BYP
= 10nF
V
C
OUT
2.2µF
0
10
20
30
40
50
60
70
80
90
FREQUENCY (Hz)
Ripple Rejection
LowQ Mode
10
100
1k
10k
1M
100k
V
OUT=1.85V
.
V
IN=VOUT+1V
I
LOAD
=10mA
C
OUT
= 2.2 µF Ceramic
2.3
2.35
2.4
2.45
2.5
2.55
2.6
2.65
2.7
0
25
50
75
100
125
Output Voltage
vs. Temperature
100µA
0
0.5
1
1.5
2
2.5
3
012
3
456
SUPPLY VOLTAGE (V)
Dropout Characteristics
100mA
150mA
300mA
V
OUT=2.6V
0
20
40
60
80
100
120
140
160
-40 -20 0
20 40 60 80 100 120
Dropout vs.
Temperature (Normal Mode)
50mA
150mA
300mA
0
20
40
60
80
100
120
140
-40 -20 0
20 40 60 80 100 120
Dropout vs.
Temperature (LowQ Mode)
3mA
6mA
10mA
0
5
10
15
20
25
30
35
1.3 1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
SUPPLY VOLTAGE (V)
Ground Current
100mA
150mA
300mA
10mA LowQ™
vs. Supply Voltage
0
5
10
15
20
25
30
35
-40 -20 0
20 40 60 80 100 120
Ground Current
100mA
150mA
300mA
50mA
vs. Temperature
0
1
2
3
4
5
6
7
8
9
-40 -20 0
20 40 60 80 100 120
Ground Current
vs. Temperature (LowQ Mode)
100µA
10mA
0.001
0.01
0.1
1
FREQUENCY (Hz)
Output Noise
Spectral Density
10
100
1k
10k 100k 1M 10M
VIN = 4.45V
COUT = 2.2 µF
CBYP = 0.01µF
VOUT = 1.8V
ROUT



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