MP2002 – LOW INPUT VOLTAGE, 500mA LINEAR REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
C1=2.2μF, C2 =4.7μF, C3=1nF, TA = +25°C, unless otherwise noted. (Reference Figure 2)
Supply Current Shut Down Current Line Transient
V
= 2V to 3V, V = 1.8V, V = V ,
EN IN
IN
O
I
= 50mA, with Resisitor Load
LOAD
170
160
150
140
130
120
10
9
V
IN
0.5V/div.
8
V
O
7
50mV/div.
6
5
2 ms/div.
1
2
3
4
5
6
1
2
3
4
5
6
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
PSRR vs Frequency
VFB vs Temperature
Load Transient
V
I
= 2.5V, V = 1.8V, V = V ,
EN IN
IN
O
V
=1.8V, V =V =1mA
I
= 50 to 300mA, with Resistor Load
IN EN IN, LOAD
LOAD
90
80
70
60
50
40
30
20
10
0
495.0
494.5
494.0
V
O
100mV/div.
493.5
493.0
492.5
I
LOAD
0.2A/div.
492.0
0.1 1.0
10
100 1000 10000
-50
-20
10
40
70
100
FREQUENCY (Hz)
TEMPERATURE (C)
Power Good OFF
Enable Turn On
Enable Turn Off
V
V
= 3.6V, V = 1.8V,
V
= 1.35V, V = 0.6V, V = 0V to 3.6V,
EN
V
= 1.35V, V = 0.6V, V = 3.6V to 0V,
EN
= 200mA, with Resistor Load
IN
O
IN
O
IN
O
= V , I
= 0.17A, with Resisitor Load
I
= 200mA, with Resistor Load
I
EN
IN LOAD
LOAD
LOAD
EN
2V/div.
EN
2V/div.
PG
2V/div.
V
O
1V/div.
V
O
0.5V/div.
V
O
0.5V/div.
I
LOAD
0.1A/div.
I
LOAD
0.2A/div.
I
LOAD
0.2A/div.
1ms/div.
MP2002 Rev. 1.11
10/10/2011
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5
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