Datasheet

Micrel, Inc. MIC2940A/2941A
July 2007 5
M9999-071307
Typical Characteristics
0
100
200
300
400
500
0.00 0.25 0.50 0.75 1.00 1.25
DROPOUT VOLTAGE (mV)
OUTPUT CURRENT (A)
Dropout Voltage
vs. Output Current
0
200
400
600
800
1000
-60 -30 0 30 60 90 120 150
DROPOUT VOLTAGE (mV)
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
I
LOAD
= 1.25A
0
1
2
3
4
5
6
0123456
OUTPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Dropout
Characteristics
I
LOAD
=5mA
I
LOAD
= 1.25A
0.1
1
10
40
11 0 100 1000 10000
GROUND CURRENT (mA)
OUTPUT CURRENT (mA)
Ground Current
vs. Output Current
10A
0
100
200
300
400
01234567 8
GROUND CURRENT (µA)
SUPPLY VOLTAGE (V)
Ground Current
vs. Supply Voltage
FIXED 5V
I
LOAD
=5mA
0
10
20
30
40
50
0246810
GROUND CURRENT (mA)
INPUT VOLTAGE (V)
Ground Current
vs. Supply Voltage
FIXED 3.3V DEVICE
I
LOAD
=1.25A
0.00
0.10
0.20
0.30
0.40
-60 -30 0 30 60 90 120 150
GROUND CURRENT (mA)
TEMPERATURE (°C)
Ground Current
vs. Temperature
I
LOAD
=5mA
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-60 -30 0 30 60 90 120 150
GROUND CURRENT (mA)
TEMPERATURE (°C)
Ground Current
vs. Temperature
I
LOAD
=100mA
0
10
20
30
40
50
-60 -30 0 30 60 90 120 150
GROUND CURRENT (mA)
TEMPERATURE (°C)
Ground Current
vs. Temperature
I
LOAD
=1.25A
I
LOAD
= 100mA
3.20
3.22
3.24
3.26
3.28
3.30
3.32
3.34
3.36
3.38
3.40
-60 -30 0 30 60 90 120 150
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
Fixed 3.3V Output Voltage
vs. Temperature
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-60 -30 0 30 60 90 120 150
CURRENT (A)
TEMPERATURE (°C)
Short Circuit and Maximum
Current vs. Temperature
V
OUT
=V
NOMINAL
–0.5V
V
OUT
=0V
FIXED 3.3V
VERSION
3SAMPLES
-200
0
200
400
600
800
1000
-30 -20 -10 0 10 20 30
GROUND CURRENT (µA)
INPUT VOLTAGE (V)
Ground Current
vs. Input Voltage
R
LOAD
= 100