MIC39300 Micrel Semiconductor, MIC39300 Datasheet - Page 5

• Manufacturer Part Number: MIC39300
• Description: 3A Low-Voltage Low-Dropout Regulator
• Manufacturer: Micrel Semiconductor

Typical Characteristics
March 2000
MIC39300/39301
600
500
400
300
200
100
50
40
30
20
10
10
25
20
15
10
8
6
4
2
0
0
0
5
0
-40 -20 0 20 40 60 80 100 120
-40 -20 0 20 40 60 80 100 120
0
V
V
C
I
LOAD
OUT
IN
OUT
vs. Ripple Rejection
vs. Supply Voltage
2
= 3.3V
SUPPLY VOLTAGE (V)
TEMPERATURE ( C)
TEMPERATURE ( C)
Dropout Voltage
vs. Temperature
vs. Temperature
Ground Current
Ground Current
= 2.5V
= 47 F
= 3A
FREQUENCY (Hz)
Power Supply
I
4
V
I
LOAD
LOAD
I
OUT
LOAD
6
= 2.5V
= 10mA
= 1.5A
= 100mA
V
I
LOAD
OUT
8
= 2.5V
= 3A
10
12
100
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
50
40
30
20
10
90
80
70
60
50
40
30
20
10
60
50
40
30
20
10
0
0
0
-40 -20 0 20 40 60 80 100 120
1.2
0
V
V
C
I
Dropout Characteristics
LOAD
OUT
IN
OUT
I
LOAD
vs. Ripple Rejection
1.6
vs. Supply Voltage
2
= 3.3V
SUPPLY VOLTAGE (V)
INPUT VOLTAGE (V)
TEMPERATURE ( C)
vs. Temperature
Ground Current
= 2.5V
Ground Current
= 100 F
= 3A
FREQUENCY (Hz)
Power Supply
= 100mA
2.0
I
I
4
LOAD
LOAD
5
I
LOAD
2.4
I
= 1.5A
= 3000mA
6
LOAD
I
1000mA
V
I
= 1500mA
LOAD
LOAD
OUT
2.8
= 3A
8
= 2.5V
=
= 3A
3.2
10
3.6
12
400
350
300
250
200
150
100
50
50
40
30
20
10
0
0
8
7
6
5
4
3
2
1
0
6
5
4
3
2
1
0
-40 -20 0 20 40 60 80 100 120
-40 -20 0 20 40 60 80 100 120
0
0
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
vs. Output Current
vs. Output Current
TEMPERATURE ( C)
TEMPERATURE ( C)
Dropout Voltage
vs. Temperature
Short Circuit vs.
Ground Current
Ground Current
1000
1000
Temperature
V
(typical 2.5V device)
IN
= 3.5V
V
I
LOAD
OUT
MIC39300/39301
2000
2000
V
I
LOAD
= 2.5V
= 100mA
OUT
= 2.5V
= 3A
3000
3000
Micrel