MIC37100 Datasheet, PDF (6/15 Pages) Micrel Semiconductor – 1A LOW VOLTAGE U CAP LDO REGULATOR

MIC37100/37101/37102
Typical Characteristics
Power Supply
Rejection Ratio
80
70
V_IN = 5V
V_OUT = 3.3V
60
50
40
30
20 ^{IOUT = 1000mA}
C_OUT = 10µF
10 _{CIN = 0}
0
0.01 0.1 1 10 100
FREQUENCY (KHz)
1000
Power Supply
Rejection Ratio
80
70
V_IN = 3.3V
V_OUT = 2.5V
60
50
40
30
20 ^{IOUT = 1000mA}
C_OUT = 47µF
10 _{CIN = 0}
0
0.01 0.1 1
10 100
FREQUENCY (KHz)
1000
Dropout Characteristics
(1.5V)
1.6
10mA Load
1.4
1.2
1
0.8
1000mA Load
0.6
0.4
0.2
0
1.5 1.7 1.9 2.1 2.3 2.5
INPUT VOLTAGE (V)
Dropout Characteristics
(3.3V)
3.5
3.0 10mA Load
2.5
2.0
1.5
1000mA Load
1.0
0.5
0
1.5 2 2.5 3 3.5 4
INPUT VOLTAGE (V)
M9999-091604
Power Supply
Rejection Ratio
80
70
V_IN = 5V
V_OUT = 3.3V
60
50
40
30
20 ^{IOUT = 1000mA}
10
C_OUT = 47µF
C_IN = 0
0
0.01 0.1 1 10 100
FREQUENCY (KHz)
1000
Dropout
vs. Output Current
350
300
2.5V_OUT
250
200
150
3.3V_OUT
100
50
0
0 0.25 0.5 0.75 1
OUTPUT CURRENT (A)
Dropout Characteristics
(1.8V)
2.0
1.8 ^{10mA Load}
1.6
1.4
1.2
1.0
1000mA Load
0.8
0.6
0.4
0.2
0.0
1.5 1.7 1.9 2.1 2.3 2.5 2.7
INPUT VOLTAGE (V)
Ground Current
vs. Output Current
12
10
8
6
4 _1.5VOUT
2
3.3VOUT
0
0 0.25 0.5 0.75 1
OUTPUT CURRENT (A)
6
Micrel
Power Supply
Rejection Ratio
80
70
V_IN = 3.3V
V_OUT = 2.5V
60
50
40
30
20 ^{IOUT = 1000mA}
C_OUT = 10µF
10 _{CIN = 0}
0
0.01 0.1 1
10 100
FREQUENCY (KHz)
1000
Dropout
vs. Temperature
450
400
350
300
250
2.5VOUT
200
150
100
50
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Dropout Characteristics
(2.5V)
3.0
2.5 ^{10mA Load}
2.0
1.5
1000mA Load
1.0
0.5
0
1.5
2
2.5
3
3.5
INPUT VOLTAGE (V)
Ground Current
vs. Supply Voltage (1.5V)
0.8
0.7
0.6
100mA
0.5
0.4
0.3
0.2
10mA
0.1
0
0123456
INPUT VOLTAGE (V)
September 2004