MIC37300_09 Datasheet, PDF (6/13 Pages) Micrel Semiconductor – 3.0A, Low-Voltage μCap LDO Regulator

Micrel, Inc.
Typical Characteristics
Power Supply
Rejection Ratio
80
70
V_IN = 2.5V
V_OUT = 1.5V
60
50
40
30
20 ^IOUT ^{= 3A}
10
C_OUT = 47µF
C_IN = 0
00.01 0.1 1
10 100
FREQUENCY (kHz)
1000
Dropout vs.
Tempetature
450
400
350
300
2.5V_OUT
250
200
150
100
50
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE(°C)
Dropout Characteristics
(3.3V)
3.5
3 _{10mA Load}
2.5
2
3A Load
1.5
1
0.5
01.5 _{2 2.5 3 3.5 4}
INPUT VOLTAGE (V)
Ground Current
vs. Supply Voltage (1.5V)
40
35
30
3A
25
20
15
2A
10
1A
5
00
1
2
3
4
5
SUPPLY VOLTAGE (V)
MIC37300/01/02/03
Power Supply
Rejection Ratio
80
70
V_IN = 2.5V
V_OUT = 1.5V
60
50
40
30
20 ^{IOUT = 3A}
10
C_OUT = 100µF
C_IN = 0
00.01 0.1 1 10 100
FREQUENCY (kHz)
1000
Dropout Characteristics
(1.5V)
1.6
10mA Load
1.4
1.2
1
0.8
0.6
0.4
0.2
3A Load
10.5 1.7 1.9 2.1 2.3 2.5
INPUT VOLTAGE (V)
Ground Current
vs. Output Current
50
45
40
35
30
25
20
15
10
5
0
0 0.5 1 1.5 2 2.5 3
OUTPUT CURRENT (A)
Ground Current
vs. Supply Voltage (2.5V)
1.4
1.2
1
0.8
100mA
0.6
0.4
0.2
10mA
00
1
2
3
4
5
SUPPLY VOLTAGE (V)
Dropout vs.
Output Current
500
450
400
350
300 2.5V_OUT
250
200
150
3.3V_OUT
100
50
00 _{0.5 1 1.5 2 2.5 3}
OUTPUT CURRENT (A)
Dropout Characteristics
(2.5V)
3
2.5 ^{10mA Load}
2
1.5
1
3A Load
0.5
01.5
2
2.5
3
3.5
INPUT VOLTAGE (V)
Ground Current
vs. Supply Voltage (1.5V)
0.0006
0.0005
0.0004
100mA
0.0003
0.0002
10mA
0.0001
00
1
2
3
4
5
SUPPLY VOLTAGE (V)
Ground Current
vs. Supply Voltage (2.5V)
70
60
50
40
3A
30
20
2A
10
1A
00
1
2
3
4
5
SUPPLY VOLTAGE (V)
October 2009
6
M9999-102909