MIC2940A/2941A
Micrel
Typical Characteristics
Dropout Voltage
vs. Output Current
500
DROPOUT VOLTAGE (mV)
DROPOUT VOLTAGE (mV)
Dropout Voltage
vs. Temperature
1000
800
600
400
200
I
LOAD
= 1.25A
Dropout
Characteristics
6
OUTPUT VOLTAGE (V)
5
4
3
2
I
LOAD
= 1.25A
1
0
0
1
2
3
4
5
INPUT VOLTAGE (V)
6
I
LOAD
= 5mA
400
300
200
100
0
0.00
0.25 0.50 0.75 1.00
OUTPUT CURRENT (A)
1.25
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Ground Current
vs. Output Current
40
GROUND CURRENT (mA)
GROUND CURRENT (µA)
400
Ground Current
vs. Supply Voltage
50
GROUND CURRENT (mA)
40
30
20
10
0
Ground Current
vs. Supply Voltage
10
300
200
1
100
FIXED 5V
I
LOAD
= 5mA
0
1
2 3 4 5 6 7
SUPPLY VOLTAGE (V)
8
FIXED 3.3V DEVICE
I
LOAD
= 1.25A
0
2
4
6
8
INPUT VOLTAGE (V)
10
0.1
1
10
100
1000
10000
10A
OUTPUT CURRENT (mA)
0
Ground Current
vs. Temperature
0.40
GROUND CURRENT (mA)
Ground Current
vs. Temperature
2.0
GROUND CURRENT (mA)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
I
LOAD
= 100mA
50
40
30
20
10
Ground Current
vs. Temperature
I
LOAD
= 1.25A
GROUND CURRENT (mA)
0.30
0.20
0.10
I
LOAD
= 5mA
0.00
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Fixed 3.3V Output Voltage
vs. Temperature
3.40
OUTPUT VOLTAGE (V)
3.38
3.36
CURRENT (A)
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)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
Short Circuit and Maximum
Current vs. Temperature
1000
GROUND CURRENT (µA)
V
OUT
= V
NOMINAL
– 0.5V
Ground Current
vs. Input Voltage
800
600
400
200
0
-200
-30
-20 -10 0
10 20
INPUT VOLTAGE (V)
30
R
LOAD
= 100Ω
V
OUT
= 0V
FIXED 3.3V
VERSION
3 SAMPLES
0.2
0.0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
June 1999
5
MIC2940A/2941A
MICREL [ MICREL SEMICONDUCTOR ]
