Micrel, Inc.
MIC49150
Typical Characteristics
80
70
60
PSRR (dB)
PSRR (dB)
50
40
30
20
10
V
BIAS
= 3.3V
V
IN
= 1.8V
V
OUT
= 1.0V
I
OUT
= 1.5A
C
OUT
= 1µF ceramic
0.1
1
10
100
FREQUENCY (kHz)
1000
Power Supply Rejection Ratio
(Input Suppl )
80
70
60
50
40
30
20
10
Power Supply Rejection Ratio
(Bias Suppl )
DROPOUT VOLTAGE (mV)
300
250
200
150
100
50
0
200
Dropout Voltage
(Input Suppl )
1000
1200
1400
0.1
1
10
100
FREQUENCY (kHz)
1000
OUTPUT CURRENT (mA)
1.8
DROPOUT VOLTAGE (V)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
200
0
Dropout Voltage
(Bias Supply)
400
DROPOUT VOLTAGE (mV)
350
300
250
200
150
100
50
Dropout Voltage
vs. Temperature
(Input Supply)
DROPOUT VOLTAGE (V)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
Dropout Voltage
vs. Temperature
(Bias Supply)
V
IN
= 2.5V
V
OUT
= 1.5V
1000
1200
1400
1600
400
600
800
V
BIAS
= 5V
I
OUT
= 1.5A
V
OUT
= 1. 5V
OUTPUT CURRENT (mA)
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE(°C)
0.2
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE(°C)
V
IN
= 2.5V
I
OUT
= 1.5A
V
OUT
= 1.5V
1.6
OUTPUT VOLTAGE (V)
1.4
1.2
1.0
0.8
0.6
0.4
Dropout Characteristics
(Input Voltage)
OUTPUT VOLTAGE (V)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
Dropout Characteristics
(Bias Voltage)
OUTPUT VOLTAGE (V)
1.505
1.504
1.503
1.502
1.501
1.500
1.499
1.498
1.497
1.496
0
200
1.495
Load Regulation
I
OUT
= 10mA
I
OUT
= 10mA
I
OUT
= 1.5A
I
OUT
= 1.5A
1000
1200
1400
0
0
0.5
1
1.5
2
INPUT VOLTAGE (V)
2.5
1
2
3
4
5
6
BIAS VOLTAGE (V)
7
OUTPUT CURRENT (mA)
300
BIAS CURRENT (mA)
250
200
150
100
50
0
3
Maximum Bias Current
vs. Bias Voltage
300
BIAS CURRENT (mA)
250
200
150
100
50
Maximum Bias Current
vs. Temperature
45
40
BIAS CURRENT (mA)
35
Bias Current
vs. Temperature
V
IN
= 2.5V
V
OUT
= 1.5V
V
BIAS
= 5V
I
= 1500mA
V
ADJ
= 0V
I
OUT
= 1.5A
V
IN
= 2.5V
V
BIAS
= 5V
V
ADJ
= 0V
V
IN
= 2.5V
30 I
= 750mA
OUT
25
20
15
10
5
I
OUT
= 100mA
OUT
*Note: Maximum bias current is bias
current with input in dropout
3.5
4 4.5 5 5.5 6
BIAS VOLTAGE (V)
6.5
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE(
°C)
I
= 10mA
OUT
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
November 2006
4
M9999-111306
1600
400
600
800
V
BIAS
= 5V
0.2 V
OUT
= 1.5V
V
IN
= 2.5V
V
OUT
= 1.5V
V
BIAS
= 5V
V
IN
= 2.5V
1600
0
0.01
0
0.01
V
BIAS
= 3.3V
V
IN
= 1.8V
V
OUT
= 1.0V
I
OUT
= 1.5A
C
OUT
= 1µF ceramic
V
BIAS
= 5V
V
OUT
= 1.0V
400
600
800
0
MICREL [ MICREL SEMICONDUCTOR ]
