MIC5311 MICREL [Micrel Semiconductor], MIC5311 Datasheet - Page 5

• Manufacturer Part Number: MIC5311
• Description: LowQ Mode Dual 300mA LDO
• Manufacturer: MICREL [Micrel Semiconductor]

February 2005
Micrel, Inc.
Typical Characteristics
2.5
1.5
0.5
0.001
0.01
3
2
1
0
90
80
70
60
50
40
30
20
10
0
0.1
35
30
25
20
15
10
0
Dropout Characteristics
10
1.3 1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
5
0
1
10
vs. I
V
V
C
C
100mA
C
C
V
V
R
OUT
IN
OUT
BYP
BYP
OUT
1
IN
OUT
OUT
=V
vs. Supply Voltage
SUPPLY VOLTAGE (V)
100
100
SUPPLY VOLTAGE (V)
Ripple Rejection
= 4.45V
=1.85V
= 10nF
=
Spectral Density
Ground Current
LOAD
OUT
= 0.01µF
= 1.8V
2.2µF
= 2.2 µF
FREQUENCY (Hz)
Output Noise
FREQUENCY (Hz)
2
+1V
1k
1k
(Normal Mode)
150mA
300mA
3
10k 100k 1M 10M
150mA
10k
10mA LowQ™
V
OUT
4
150mA
=2.6V
100k
300mA
300mA
5
50mA
100mA
1M
6
160
140
120
100
90
80
70
60
50
40
30
20
10
35
30
25
20
15
10
Temperature (Normal Mode)
80
60
40
20
0
-40 -20 0 20 40 60 80 100 120
10
-40 -20 0
5
0
0
V
V
I
C
LOAD
OUT
IN
OUT
=V
Ripple Rejection
100
=1.85V
=10mA
= 2.2 µF Ceramic
vs. Temperature
Ground Current
OUT
FREQUENCY (Hz)
LowQ Mode
.
Dropout vs.
+1V
20 40 60 80 100 120
1k
150mA
5
50mA
10k
100k
300mA
300mA
150mA
50mA
100mA
1M
vs. Temperature (LowQ Mode)
2.65
2.55
2.45
2.35
140
120
100
2.7
2.6
2.5
2.4
2.3
-40 -20 0
9
8
7
6
5
4
3
2
1
0
80
60
40
20
-40 -20 0
Temperature (LowQ Mode)
0
0
100µA
Ground Current
vs. Temperature
25
Output Voltage
Dropout vs.
20 40 60 80 100 120
20 40 60 80 100 120
50
10mA
75
[phone]
M9999-021105
100µA
100
10mA
MIC5311
6mA
3mA
125