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MP8801 – LOW DROPOUT, 150mA LINEAR REGULATOR
MP8801 Rev. 1.7
10/3/2006
www.MonolithicPower.com
3
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 4.5V, V
OUT
= 2.85V, C1 = 1μF, C2 = 0.1μF, C3 = 2.2μF, T
A
= +25
°
C unless otherwise noted.
Load-Transient Response
(Circuit in Figure 3)
Line-Transient Response
(Circuit in Figure 3)
I
LOAD
(50mA/div.)
V
OUT
(20mV/div.)
V
IN
(1V/div.)
V
OUT
(10mV/div.)
2.87
2.865
2.86
2.855
2.85
2.845
2.84
V
O
3
4
5
6
7
V
IN
(V)
V
OUT
vs. V
IN
135
130
125
120
115
110
105
0
50
100
150
I
LOAD
(mA)
I
GND
vs I
LOAD
135
130
125
120
115
110
105
80
70
60
50
40
30
20
10
P
2
3
4
5
6
7
0.01
0.1
1
10
100
1000
V
IN
(V)
I
GND
vs V
IN
FREQUENCY (Hz)
FREQUENCY (KHz)
Output Noise
Spectral Density
128
102.4K
FREQUENCY (Hz)
128
102.4K
Output Noise
Spectral Density
160
140
120
100
80
60
40
20
0
V
D
0
20 40 60 80 100 120 140 160
I
LOAD
(mA)
V
DROPOUT
vs I
LOAD
PSRR vs Frequency
I
OUT
= 150mA
I
OUT
= 1mA
x: 1.024kHz
y: 240.013n
x: 1.024kHz
y: 287.004n
I
LOAD
= 1mA
I
LOAD
= 1mA
V
IN
= 6.5V
V
IN
= 5.0V
V
IN
= 2.7V
I
LOAD
= 150mA
I
LOAD
= 150mA
4V
3V
2.85V
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