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