MP20045 – LOWER NOISE, 1A LINEAR REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=3.3V, VOUT=2.8V, CIN=COUT=2.2µF, TA=25°C, unless otherwise noted
Quiescent Current
vs. Temperature
Quiescent Current
vs. Input Voltage
Dropout Voltage
vs. Temperature
120
100
80
60
40
20
0
180
160
140
120
100
80
120
100
80
60
40
20
0
60
40
I
=1A
20
OUT
0
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
3
3.5
4
4.5
5
5.5
INPUT VOL T AGE (V)
Dropout Voltage
vs. Output Current
EN threshold
vs. Input Voltage
EN threshold
vs. Temperature
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
160
140
120
100
80
1.1
EN high threshold
1
0.9
0.8
0.7
0.6
0.5
0.4
EN high threshold
EN low threshold
EN low threshold
60
40
20
0
-40 -20
0
20 40 60 80 100
0
200
400
600
800 1000
3
3.5
4
4.5
5
5.5
INPUT VOL T AGE (V)
Current Limit
vs. Temperature
Current Limit
vs. Input Voltage
Line Regulation
2.5
2
2.5
0.3
0.2
2
1.5
1
I
=0.5A
OUT
0.1
1.5
1
0.0
I
=0A
OUT
-0.1
-0.2
-0.3
0.5
0.5
0
0
3
3.5
4
4.5
5
5.5
-40 -20
0
20 40 60 80 100
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
MP20045 Rev. 1.0
10/13/2010
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