spx2954am3-l-5-0-tr Exar Corporation, spx2954am3-l-5-0-tr Datasheet - Page 7

• Manufacturer Part Number: spx2954am3-l-5-0-tr
• Description: 250ma Low Dropout Voltage Regulator
• Manufacturer: Exar Corporation

Minimum Operating Voltage
Maxium Rated Output
TYPICAL PERFORMANCE CHARACTERISTICS
Date: 12/9/05
Load Transient Response
2.3
2.1
1.9
1.7
120
100
-100
100
250
200
150
100
100
mA
µA
80
60
40
20
-50
-75
50
0
0
0
~ ~
-50 -25
0
T
A
5
= 85 ºC
INPUT VOLTAGE (V)
1
TEMPERATURE
10
0
25
TIME (ms)
0.25" LEADS SOLDERED
2
15
50
TO-92 PACKAGE
TO PC BOARD
V
C
OUT
L
T
75
= 1µF
JMAX
3
Vout=5V
20
= 5V
100 125
= 125 ºC
T
A
=25 ºC
25
4
150
5
30
SPX2954, 250mA Low Dropout Voltage Regulator
Load Transient Response
Feedback Bias Current
Divider Resistance
400
300
200
100
-10
-20
-30
0
-75
20
10
-60
100
100
0
-20
-40
80
60
40
20
µA
µA
0
-75
~
~
-50 -25
-50
0
-25
TEMPERATURE (ºC)
TEMPEATURE (ºC)
4
0
0
7
25
TIME (ms)
25
8
50
50
V
C
OUT
L
12
= 10µF
75
75 100
= 5V
(CONT.)
100 125
16
125
150
150
20
Maxium Rated Output Current
Enable Transient
Feedback Pin Current
120
100
80
60
40
20
0
-100
-150
-200
-250
-50
0
50
-2
0
7
6
5
4
3
2
1
0
2
0
-100
-2.0
T
A
© Copyright 2005 Sipex Corporation
PIN 7 DRIVEN BY EXTERNAL
SOURCE (REGULATOR RUN
TA=1 25ºC
= 50ºC
5
T
0 100 200 300 400 500 600 700
-1.5
A
T
= 25ºC
INPUT VOLTAGE (V)
FEEDBACK VOLTAGE (V)
A
10
OPEN LOOP)
= 85ºC
-1.0
T
A
C
L
= 55ºC
= 10µF
TIME (us)
15
-0.5
C
L
= 1µF
DIP SOLDERED
TO PC BOARD
T
JMAX
V
20
MOLDED
V
V
0
I
OUT
L
8-PIN
IN
OUT
= 10mA
T
= 125º C
= 8V
A
= 5V
= 25ºC
= 5V
0.5
25
1.0
30