MP8904 –500mA LINEAR REGULATOR
MP8904 Rev. 1.02 www.MonolithicPower.com 5
6/6/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
C1=2.2μF, C2 =4.7μF, C3=1nF, T
A
= +25°C, unless otherwise noted.
V
O
50mV/div.
V
IN
0.5V/div.
2 ms/div.
Line Transient
V
IN
= 2.5V to 3.5V, V
O
= 1.8V, V
EN
= V
IN
,
I
LOAD
= 50mA, with Resisitor Load
V
O
100mV/div.
I
LOAD
0.2A/div.
400μ s/div.
Load Transient
V
IN
= 2.5V, V
O
= 1.8V, V
EN
= V
IN
,
I
LOAD
= 50 to 300mA, with Resistor Load
V
O
1V/div.
V
EN
1V/div.
I
LOAD
0.1A/div.
100μ s/div.
V
IN
= 3.3V, V
O
= 1.8V,V
EN
= 0V - 2V,
I
O
= 200mA, with Resisitor Load
V
IN
= 3.3V, V
O
= 1.8V,V
EN
= 2V - 0V,
I
O
= 200mA, with Resisitor Load
EN
2V/div.
V
O
0.5V/div.
I
LOAD
0.2A/div.
1ms/div.
90
80
70
60
50
40
30
20
10
0
PSRR vs Frequency
Enable Turn On Enable Turn Off
V
FB
(mV)
-50 -20 10 40 70 1000.1 1.0 10 100 1000 10000
TEMPERATURE (C)
V
FB
vs Temperature
V
IN
=2.5V, V
EN
=V
IN,
I
LOAD
=1mA
10
9
8
7
6
5
495.0
494.5
494.0
493.5
493.0
492.5
492.0
1 2 3 4 5 6
INPUT VOLTAGE (V)INPUT VOLTAGE (V)
FREQUENCY (Hz)
170
160
150
140
130
120
I
S
Current
(μΑ )
I
Q
Current
(μΑ )
1 2 3 4 5 6
Supply Current vs.
Input Voltage
Shut Down Current
vs. Input Voltage
PSRR (dB)
V
IN
2V/div.
PG
5V/div.
V
O
1/div.
I
LOAD
0.5/div.
400μ s/div.
Thermal Protection
V
IN
= V
EN
= 5V,
V
O
= 1.8V, I
LOAD
= 0.5A
V
PG
0.2A/div.
V
PG
0.2A/div.
