Micrel, Inc.
MIC39150/39151/39152
Typical Characteristics
60
50
40
30
20
I
LOAD
= 1.5A
10 C
OUT
= 10µF
C
IN
= 0
0
1E+1 1E+2 1E+3 1E+4 1E+5 1E+6
1k 10k 100k 1M
10 100
FREQUENCY (Hz)
Power Supply
Rejection Ratio
V
IN
= 3.3V
V
OUT
= 2.5V
600
500
400
300
200
100
Dropout Voltage
vs. Temperature
2.8
2.6
2.4
2.2
2.0
1.8
1.6
Dropout Characteristics
I
LOAD
= 100mA
25
20
15
10
Ground Current
vs. Output Current
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 1.8V
I
LOAD
= 1.5A
I
LOAD
= 750mA
5
V
OUT
= 2.5V
0
0
250 500 750 100012501500
OUTPUT CURRENT (mA)
I
LOAD
= 1.5A
1.4
1.2
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE °C)
(
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
INPUT VOLTAGE (V)
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Ground Current
vs. Supply Voltage
0.36
0.35
Ground Current
vs. Temperature
I
LOAD
= 1500mA
I
LOAD
= 1000mA
I
LOAD
= 750mA
0.34
0.33
0.32 V
= 2.5V
OUT
0.31
I
LOAD
= 10mA
V
OUT
= 1.8V
0
2
4
6
8
10 12
SUPPLY VOLTAGE (V)
0.30
-40 -20 0 20 40 60 80 100 120
TEMPERATURE °C)
(
25
20
15
Ground Current
vs. Temperature
V
OUT
= 2.5V
3.5
3.0
2.5
2.0
1.5
Short Circuit vs.
Temperature
typical 2.5V device
typical 1.8V device
V
OUT
= 1.8V
10
5
I
LOAD
= 1.5A
1.0
0.5
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE °C)
(
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE °C)
(
October 2009
6
M9999-102309-A
MICREL [ MICREL SEMICONDUCTOR ]
