MP20042-DUAL, LOW NOISE, HIGH PSRR, 200mA LINEAR REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=3.6V, VOUT1=2.5V, VOUT2=1.8V, CIN=COUT1=COUT2=2.2uF, EN1=EN2=VIN, Typical Value at TA =
25°C for Both Channel Enabled.
Quiescent Current vs.
Supply Voltage
Quiescent Current vs.
Temperature
Dropout Voltage vs.
Temperature
300
280
260
240
220
200
180
150
200
150
100
50
120
90
60
30
0
ILOAD=200mA
0
-40 -20
0
20 40 60
85
2.5
3
3.5
4
4.5
5
5.5
6
-20
0
20
40
60
85
INPUT VOLTAGE (V)
Out Voltage Accuracy vs.
Temperature
Power Supply Rejection
Ratio vs. Frequency
Channel-to-Channel
Isolation vs. Frequency
120
100
80
60
40
20
0
0.25
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
-0.15
-0.20
-0.25
80
70
60
50
40
30
20
10
0
10
100
1000 10000 1000001000000
100
1000
10000 100000 1000000
-40 -20
0
20 40 60
85
FREQUENCY(Hz)
FREQUENCY(Hz)
Line Transient Response
VOUT=3.5V to 4.5V, CIN=0uF, COUT=2.2uF VIN=3.6V, VOUT=1.8V
Load Transient Response
EN Pin Shut Down Response
VIN=3.6V, VOUT=1.8V, VEN=0 to 5V
No Load
I
LOAD=0 to 80mA, with Resistor Load
ILOAD=50mA, with Resistor Load
VOUT
VOUT
10mV/div
10mV/div
VOUT
1V/div
ILOAD
50mA/div
VIN
1V/div
VEN
5V/div
1ms/div
1ms/div
MP20042 Rev. 0.9
9/28/2009
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