mic49300 Micrel Semiconductor, mic49300 Datasheet - Page 5

• Manufacturer Part Number: mic49300
• Description: Mic49300 3.0a Low Voltage Ldo Regulator W/dual Input Voltages
• Manufacturer: Micrel Semiconductor

Typical Characteristics
August 2005
MIC49300
1.834
1.824
1.814
1.804
1.794
1.784
1.774
1.764
300
250
200
150
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
50
35
30
25
20
15
10
0
5
0
-40 -20 0
0
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
0
Dropout Characteristics
0.5
0.5
vs. Output Current
100mA
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
vs. Output Current
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
vs. Temperature
Output Voltage
V
Bias Current
1.0
IN
1
20 40 60 80 100 120
Dropout
1.5
1.5
3A
V
V
V
BIAS
IN
2.0
2
BIAS
= 2.5V
= 5V
2.5
2.5
= 5V
3.0
3
1.7
1.6
1.5
1.4
1.3
1.2
1.1
35
30
25
20
15
10
25
20
15
10
1
9
8
7
6
5
4
3
2
1
0
5
0
-40 -20 0
5
0
-40 -20 0
0
0 0.5 1 1.5 2 2.5 3 3.5 4
I
0.5
OUT
vs. Output Current
OUTPUT CURRENT (A)
TEMPERATURE (°C)
TEMPERATURE (°C)
vs. Input Supply
vs. Temperature
vs. Temperature
V
INPUT SUPPLY (V)
I
OUT
= 100µA
BIAS
Bias Current
Bias Current
Short Circuit
1.0
20 40 60 80 100 120
20 40 60 80 100 120
= 500mA
5
Dropout
1.5
I
I
OUT
I
OUT
OUT
V
V
2.0
OUT
BIAS
= 100mA
= 100mA
= 0mA
= 1.8V
= 5V
2.5
3.0
1000
400
350
300
250
200
150
100
900
800
700
600
500
400
300
200
100
50
60
50
40
30
20
10
0
-40 -20 0 20 40 60 80 100 120
0
0
-40 -20 0 20 40 60 80 100 120
Temperature (Input Supply)
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
vs. Supply Voltage
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
vs. Temperature
Dropout vs.
Bias Current
Bias Current
I
OUT
I
OUT
= 2A
= 3A
M9999-082605-B
I
I
OUT
OUT
I
I
OUT
OUT
= 1A
= 3A
= 1A
= 2A
Micrel, Inc.