Datasheet

2 2.5 3 3.5 4 4.5 5 5.5 6
V
IN
GND I (µA)
T
J
= 125°C
T
J
= 25°C
T
J
= -40°C
20
30
40
50
60
70
80
90
100
TIME (100 Ps/DIV)
800
V
IN =
2.5V
CURRENT
(mA)
V
OUT
(1V/Div)
600
400
200
0
2 2.5 3 3.5 4 4.5 5 5.5 6
V
IN
GND I (PA)
20
30
40
50
60
70
80
90
100
T
J
= 125°C
T
J
= 25°C
T
J
= -40°C
2 2.5 3 3.5 4 4.5 5 5.5 6
V
IN
GND I (PA)
T
J
= 125°C
T
J
= 25°C
20
30
40
50
60
70
80
90
100
T
J
= -40°C
-40 -25 0 25 50 75 100 125
TEMPERATURE (°C)
V
OUT
CHANGE (%)
-2.00
-1.50
-1.00
-0.50
0.00
0.50
1.00
1.50
2.00
0 50 75 100 125 150
LOAD CURRENT (mA)
GROUND CURRENT (PA)
0
10
20
30
40
50
80
T
J
= 125°C
T
J
= 25°C
T
J
= -40°C
25
60
70
LP3990
www.ti.com SNVS251I –MAY 2004–REVISED MAY 2013
Typical Performance Characteristics
Unless otherwise specified, C
IN
= 1.0µF Ceramic, C
OUT
= 0.47 µF Ceramic, V
IN
= V
OUT(NOM)
+ 1.0V, T
A
= 25°C, V
OUT(NOM)
=
1.5V , Shutdown pin is tied to V
IN
.
Output Voltage Change vs Temperature Ground Current vs Load Current
Ground Current vs V
IN
. I
LOAD
= 0mA Ground Current vs V
IN
. I
LOAD
= 1mA
Ground Current vs V
IN
. I
LOAD
= 150mA Short Circuit Current
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