MIC39300 Datasheet, PDF (5/12 Pages) Micrel Semiconductor – 3A Low-Voltage Low-Dropout Regulator

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