MIC39100 Micrel Semiconductor, MIC39100 Datasheet - Page 5

• Manufacturer Part Number: MIC39100
• Description: 1A Low-Voltage Low-Dropout Regulator
• Manufacturer: Micrel Semiconductor

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