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