MIC2937A Datasheet, PDF (6/9 Pages) Micrel Semiconductor – 750mA Low-Dropout Voltage Regulator

MIC2937A/29371/29372
Typical Characteristics
Dropout Voltage
vs. Output Current
500
400
300
200
100
0
0
200 400 600 800
OUTPUT CURRENT (mA)
Ground Current
vs. Output Current
30
10
1
0.1
1
10
100
1000
OUTPUT CURRENT (mA)
Ground Current
vs. Temperature
0.25
0.20
0.15
0.10
0.05
I_LOAD = 5mA
0.00
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Fixed 3.3V Output Voltage
vs. Temperature
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
October 1999
Dropout Voltage
vs. Temperature
700
600
500
400
300
I_LOAD = 750mA
200
100
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Ground Current
vs. Supply Voltage
200
150
100
FIXED 5V VERSION
50
I_LOAD = 5mA
0
012345678
SUPPLY VOLTAGE (V)
Ground Current
vs. Temperature
2.0
1.8
1.6
1.4
1.2
I_LOAD = 100mA
1.0
0.8
0.6
0.4
0.2
0.0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Short Circuit and Maximum
Current vs. Temperature
1.4
1.2
V_OUT = V_NOMINAL – 0.5V
1.0
0.8
V_OUT = 0V
0.6
0.4
0.2
FIXED 5V
VERSION
0.0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
23
Micrel
Dropout
Characteristics
6
5
4
I_LOAD = 5mA
3
2
I_LOAD = 750mA
1
0
0123456
INPUT VOLTAGE (V)
Ground Current
vs. Supply Voltage
30
25
20
15
10
FIXED 5V
5
I_LOAD = 750mA
0
0 2 4 6 8 10
INPUT VOLTAGE (V)
Ground Current
vs. Temperature
30
25
I_LOAD = 750mA
20
15
10
5
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Ground Current
vs. Input Voltage
500
400 ^{RLOAD = 100Ω}
300
200
100
0
-100
-30 -20 -10 0 10 20 30
INPUT VOLTAGE (V)
MIC2937A/29371/29372