MIC39100/39101/39102
Micrel
Typical Characteristics
Power Supply
Rejection Ratio
Power Supply
Rejection Ratio
Power Supply
Rejection Ratio
80
80
60
40
20
0
80
60
40
20
0
VIN = 5V
VOUT = 3.3V
VIN = 5V
VOUT = 3.3V
VIN = 3.3V
VOUT = 2.5V
60
40
IOUT = 1A
20
IOUT = 1A
COUT = 47µF
CIN = 0
IOUT = 1A
COUT = 10µF
CIN = 0
COUT = 10µF
CIN = 0
0
1E+1 1E+2 1E+3 1E+4 1E+5 1E+6
1E+1 1E+2 1E+3 1E+4 1E+5 1E+6
1k
10k 1M
1E+1 1E+2 1E+3 1E+4 1E+5 1E+6
1k
10k 1M
1k
10k
1M
10
100
100k
10
100
100k
10
100
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
Power Supply
Rejection Ratio
Dropout Voltage
vs. Output Current
Dropout Voltage
vs. Temperature
80
600
500
VIN = 3.3V
VOUT = 2.5V
450
400
350
300
250
200
150
100
50
ILOAD = 1A
550
500
450
400
350
300
2.5V
60
40
20
0
1.8V
3.3V
3.3V
1.8V
TA = 25°C
2.5V
IOUT = 1A
COUT = 47µF
CIN = 0
0
1E+1 1E+2 1E+3 1E+4 1E+5 1E+6
1k
10k
-40 -20
0
20 40 60 80 100 120
1M
3.5
8
0
250 500 750 1000 1250
OUTPUT CURRENT (mA)
10
100
100k
FREQUENCY (Hz)
TEMPERATURE (°C)
Dropout Characteristics
(2.5V)
Dropout Characteristics
(3.3V)
Ground Current
vs. Output Current
2.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
14
2.6
2.4
2.2
2.0
1.8
1.6
1.4
12
10
8
I
=100mA
I
=100mA
LOAD
LOAD
1.8V
2.5V
I
LOAD
=750mA
3.3V
I
LOAD
=750mA
6
I
=1A
LOAD
4
I
=1A
LOAD
2
0
0
200 400 600 800 1000
OUTPUT CURRENT (mA)
2
2.3
2.6
2.9
3.2
2.8
3.2
3.6
4.0
4.4
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Ground Current
vs. Supply Voltage (2.5V)
Ground Current
vs. Supply Voltage (2.5V)
Ground Current
vs. Supply Voltage (3.3V)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
35
30
25
20
15
10
5
ILOAD =100mA
I
=100mA
=10mA
LOAD
I
=1A
LOAD
I
LOAD
ILOAD =10mA
0
0
2
4
6
8
0
2
4
6
0
2
4
6
8
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
June 2000
5
MIC39100/39101/39102
MICREL [ MICREL SEMICONDUCTOR ]
