mic37139 Micrel Semiconductor, mic37139 Datasheet - Page 4

• Manufacturer Part Number: mic37139
• Description: Mic37139 1.5a, Low-voltage ?cap Ldo Regulator
• Manufacturer: Micrel Semiconductor

MIC37139
Typical Characteristics
M9999-112003
500
450
400
350
300
250
200
150
100
5.0
80
60
40
20
1.4
1.2
0.8
0.6
0.4
0.2
50
1E-2 1E-1 1E+0 1E+1 1E+2 1E+3
7
6
4
3
2
1
0
0
0
0.01 0.1
-40 -20 0 20 40 60 80 100 120
-40 -20 0 20 40 60 80 100 120
1
0
0
I
C
C
OUT
OUT
IN
Dropout Voltage vs.
1
SUPPLY VOLTAGE (V)
= 0
vs. Supply Voltage
= 1.5A
TEMPERATURE (°C)
TEMPERATURE (°C)
vs. Temperature
Ground Current
Ground Current
= 10µF
Rejection Ratio
FREQUENCY (Hz)
Power Supply
Temperature
2
1
3
V
I
LOAD
10
OUT
V
V
V
IN
OUT
OUT
4
2.5V
= 2.5V
= 3.3V
= 750mA
100
= 2.5V
= 2.5V
100mA
10mA
OUT
5
1k
6
3.0
2.5
2.0
1.5
1.0
0.5
80
60
40
20
45
40
35
30
25
20
15
10
1E-2 1E-1 1E+0 1E+1 1E+2 1E+3
20
18
16
14
12
10
0
0
0.01 0.1
5
0
8
6
4
2
0
1
0
-40 -20 0 20 40 60 80 100 120
I
C
C
Dropout Characteristics
OUT
OUT
IN
100mA
1
SUPPLY VOLTAGE (V)
= 0
1.5
vs. Supply Voltage
750mA
= 1.5A
INPUT VOLTAGE (V)
Ground Current
= 47µF
Rejection Ratio
TEMPERATURE (°C)
FREQUENCY (Hz)
vs. Temperature
Ground Current
Power Supply
2
1
2
4
3
1.5A
10
2.5
V
V
V
V
I
IN
OUT
OUT
LOAD
4
OUT
= 3.3V
1500mA
1000mA
100
= 2.5V
= 2.5V
750mA
=2.5V
3
= 1.5A
5
1k
3.5
6
0.445
0.435
0.415
0.405
0.44
0.43
0.42
0.41
350
300
250
200
150
100
0.5
0.4
0.4
18
16
14
12
10
50
3.0
2.5
2.0
1.5
1.0
0.5
8
6
4
2
0
0
-40 -20 0 20 40 60 80 100 120
0
0
-40 -20 0 20 40 60 80 100 120
OUTPUT CURRENT (mA)
Short Circuit Current
Dropout Voltage vs.
OUTPUT CURRENT (mA)
vs. Output Current
TEMPERATURE (°C)
Ground Current
400
vs. Temperature
Ground Current
vs. Temperature
TEMPERATURE (°C)
Output Current
800
V
I
LOAD
OUT
2.5V
= 2.5V
= 10mA
1200
February 2005
1.5V
2.5V
OUT
OUT
Micrel, Inc.
OUT
1600