Datasheet

0 50 100 150 200 250
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
0
20
40
60
80
100
120
140
160
180
200
T
A
= 125
o
C
T
A
= -40
o
C
T
A
= 25
o
C
3.5 4 4.5 5 5.5 6
V
IN
GND I (PA)
20
30
40
50
60
70
80
90
100
110
120
T
A
= 85
o
C
T
A
= -40
o
C
T
A
= 25
o
C
3.5 4 4.5 5 5.5 6
V
IN
GND I (PA)
20
30
40
50
60
70
80
90
100
110
120
T
A
= 85
o
C
T
A
= -40
o
C
T
A
= 25
o
C
3.5 4 4.5 5 5.5 6
V
IN
GND I (PA)
20
30
40
50
60
70
80
90
100
110
120
T
A
= 85
o
C
T
A
= -40
o
C
T
A
= 25
o
C
0 50 100 150 200 250
LOAD CURRENT (mA)
GROUND CURRENT (PA)
0
10
20
30
40
50
60
70
80
90
100
T
A
= 125
o
C
T
A
= -40
o
C
T
A
= 25
o
C
-50 -25 0 25 50 75 100 125
TEMPERATURE (
o
C)
-3.00
-2.00
-1.00
0.00
1.00
2.00
3.00
V
OUT
CHANGE (%)
LP3997
SNVS272B –MAY 2004–REVISED MAY 2013 www.ti.com
Typical Performance Characteristics.
Unless otherwise noted, SD = 950mV, V
IN
= V
OUT
+ 1.0V, C
IN
= 2.2 µF, I
OUT
= 1 mA, C
OUT
= 2.2 µF and C
BYP
= 0.1 µF.
Typical values and limits appearing in normal type apply for T
J
= 27°C. Limits appearing in boldface type apply over the full
temperature range for operation, −40 to +125°C.
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
= 250mA Dropout Voltage vs Load Current
6 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated
Product Folder Links: LP3997