MP20044-DUAL, ULTRA LOW NOISE, HIGH PSRR, 300mA LINEAR REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=3.5V, VOUT1=2.5V, VOUT2=1.8V, IOUT1=IOUT2=0mA, CIN=COUT1=COUT2=1μF, EN1=EN2=VIN, Typical
Value at TA = 25C for Both Channel Enabled.
Quiescent Current vs.
Supply Voltage
Quiescent Current vs.
Temperature
Dropout Voltage vs.
Temperature
180
150
300
250
200
150
100
50
200
180
160
140
120
100
80
VOUT2 dropout
120
90
60
30
0
VOUT1 dropout
60
40
20
0
0
2.5
3
3.5
4
4.5
5
5.5
6
-50 -30 -10 10 30 50 70 90
-50 -30 -10 10 30 50 70 90
VIN(V)
Out1 Voltage Accuracy vs.
Temperature
Out Voltage Accuracy vs.
Output Current
Out2 Voltage Accuracy vs.
Temperature
0.25
0.25
0.20
0.15
0.10
0.05
0
VOUT2=1.8V
0.20
0.15
0.10
0.05
0
I
O
=300mA
I
O
=300mA
V
OUT1=2.5V
-0.05
-0.10
-0.15
-0.20
-0.25
-0.05
-0.10
-0.15
-0.20
-0.25
I
=0mA
O
I
=0mA
O
-50 -30 -10 10 30 50 70 90
-50 -30 -10 10 30 50 70 90
OUTPUT CURRENT(mA)
Power Supply Rejection
Ratio vs. Frequency
Channel-to-Channel
Isolation vs. Frequency
EN Start Up Waveform
VIN=3.5V, IOUT1=IOUT2=50mA
120
80
70
60
50
40
30
20
10
0
ILOAD=50mA
100
80
60
40
20
0
VEN
2V/div
I
LOAD=10mA
VOUT1
ILOAD=100mA
VOUT2
VOUT
1V/div
10us/div
10 102 103 104 105 106
FREQUENCY(Hz)
102 103
104
105
106
FREQUENCY(Hz)
MP20044 Rev. 1.0
1/11/2013
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