MIC37150 Datasheet, PDF (5/10 Pages) Micrel Semiconductor – 1.5 A LOW VOLTAGE UCAP LDO REGULATOR

MIC37150/37151/37152
Typical Characteristics
Power Supply
Rejection Ratio
80
V_IN = 3.3V
V_OUT = 2.5V
60
40
20 ^{IOUT = 1.5A}
C_OUT = 10µF
C_IN = 0
100E.0-21 10E.1-1 1E1+0 11E0+1 11E00+2 11Ek+3
FREQUENCY (Hz)
Dropout Voltage vs.
Temperature
500
450
400
350
2.5V_OUT
300
250
200
150
100
50
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Ground Current
vs. Supply Voltage
1.4
V = 2.5V
1.2
OUT
1
0.8
100mA
0.6
0.4
10mA
0.2
00 _{1 2 3 4 5 6}
SUPPLY VOLTAGE (V)
Ground Current
vs. Temperature
7
V_OUT = 2.5V
6
I = 750mA
LOAD
5.0
4
3
2
1
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
August 2003
Micrel
Power Supply
Rejection Ratio
80
V_IN = 3.3V
V_OUT = 2.5V
60
40
20 ^{IOUT = 1.5A}
C_OUT = 47µF
C_IN = 0
0
10E.0-21 10E.1-1 1E1+0 11E0+1 11E00+2 11Ek+3
FREQUENCY (Hz)
Dropout Characteristics
3.0
2.5
2.0 100mA
1.5
1.5A
1.0
750mA
0.5
0
1 1.5 2 2.5 3 3.5
INPUT VOLTAGE (V)
Ground Current
vs. Supply Voltage
45
V = 2.5V
40
OUT
35
30
25
20
15
1500mA
10
1000mA
5
00
1
2
3
750mA
456
SUPPLY VOLTAGE (V)
Ground Current
vs. Temperature
20
18
V_OUT =2.5V
16
I_LOAD = 1.5A
14
12
10
8
6
4
2
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
5
350
300
250
200
150
100
50
00
Dropout Voltage vs.
Output Current
2.5V_OUT
400 800 1200 1600
OUTPUT CURRENT (mA)
Ground Current
vs. Output Current
18
16
2.5V_OUT
14
12
10
8
1.5V_OUT
6
4
2
0
OUTPUT CURRENT (mA)
0.5
0.445
0.44
Ground Current
vs. Temperature
V_OUT = 2.5V
I_LOAD = 10mA
0.435
0.43
0.4
0.42
0.415
0.41
0.405
0.4
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Short Circuit Current
vs. Temperature
3.0
2.5
2.0
1.5
1.0
0.5
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
MIC37150/37151/37152