MP20046 – FAST TRANSIENT RESPONSE, 2A, LOW DROPOUT VOLTAGE REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
=3.8V, V
OUT
=3.3V, C
IN
=C
OUT
=47µF, T
A
=25
o
C, unless otherwise noted.
Quiescent Current vs.
Temperature
QUIE S C E NT C UR R E NT (uA)
Quiescent Current vs.
Input Voltage
120
QU IE S C E NT C U R R E NT(uA )
Dropout Voltage vs.
Temperature
300
DR OP OUT V OL T AG E (mV )
90
80
70
60
50
40
30
20
10
0
-40 -20 0 20 40 60 80 100120140
T E MP E R AT UR E (
o
C)
100
80
60
40
20
0
3.5
250
200
150
100
50
0
-40 -20
I
OUT
=2A
0 20 40 60 80 100120140
T E MP E R AT UR E (
o
C)
4
4.5
5
INP UT V OL TAGE(V )
5.5
Dropout Voltage vs.
Output Current
250
DR OP OUT V OL T AG E (mV )
EN threshold vs.
Input Voltage
1.1
1
0.9
V
EN
(V)
EN threshold vs.
Temperature
0.9
0.8
EN high threshold
0.7
0.6
V
EN
(V)
200
150
100
50
0
EN high threshold
0.8
0.7
0.6
0.5
EN low threshold
0.5
0.4
0.3
0.2
0.1
EN low threshold
0
0.5
1
1.5
2
OUT P UT C UR R E NT (A)
0.4
3.5
4
4.5
5
INP UT V OL T AG E (V )
5.5
0
-40 -20 0 20 40 60 80 100120140
T E MP E R AT UR E (
o
C)
Current Limit vs.
Temperature
5
4
3
2
1
0
-40 -20 0 20 40 60 80 100120140
T E MP E R AT UR E (
o
C)
5
4
3
2
1
Current Limit vs.
Input Voltage
OUT P UT V OL T AG E AC C UR AC Y (% )
0.03%
0.02%
0.01%
Line Regulation
C UR R E NT L IMIT (A)
C UR R E NT L IMIT (A)
I
OUT
=1A
0.00%
I
OUT
=0A
-0.01%
-0.02%
-0.03%
0
3.5
4
4.5
5
INP UT V OL T AG E (V )
5.5
3.5
4.0
4.5
5.0
INP UT V OL T AG E (V )
5.5
MP20046 Rev. 1.1
10/13/2010
www.MonolithicPower.com
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6
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