LP2950AC Advanced Monolithic Systems, LP2950AC Datasheet - Page 6

• Manufacturer Part Number: LP2950AC
• Description: 100mA LOW DROPOUT VOLTAGE REGULATOR
• Manufacturer: Advanced Monolithic Systems

TYPICAL PERFORMANCE CHARACTERISTICS
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]
170
160
150
140
130
120
110
100
2.2
2.1
2.0
1.9
1.7
1.6
1.8
9
8
7
6
4
5
3
2
1
0
-75
-75
Short Circuit Current
LP2951 Minimum Operating Voltage
LP2951 Error Comparator Output
0
-50 -25
-50 -25
V
1
OUT
TEMPERATURE (° C)
TEMPERATURE (° C)
INPUT VOLTAGE (V)
50k RESISTOR TO
EXTERNAL 5V SUPPLY
= 5V
2
50k
RESISTOR
TO V
0 25 50 75 100 125
0 25 50 75 100 125
3
OUT
4
5
HYSTERESIS
6
7
8
150
150
300
600
500
400
100
-10
-20
-30
2.5
2.0
1.5
1.0
0.5
0.0
50
20
10
0
0
-75
-75
0.0
~ ~
Dropout Voltage
LP2951 Feedback Bias Current
LP2951 Comparator Sink Current
-50 -25
-50 -25
0.1 0.2
OUTPUT LOW VOLTAGE (V)
TEMPERATURE (° C)
TEMPERATURE (° C)
(Continued)
0.3 0.4 0.5 0.6 0.7 0.8
0 25 50 75 100 125
0 25 50 75 100 125
T
T
A
I
I
T
L
L
A
= -55°C
A
= 100mA
= 100 A
= 25°C
= 125°C
150
150
0.9
LP2950/LP2951
-100
-150
-200
-250
500
400
300
200
100
100
mV
mV
mV
-50
-50
50
8V
6V
4V
50
0
0
0
-2.0
100 A
~ ~
Dropout Voltage
LP2951 Feedback Pin Current
Line Transient Response
PIN 7 DRVEN BY EXTERNAL
SOURCE (REGULATOR RUN
T
0
A
-1.5 -1.0 -0.5
FEEDBACK VOLTAGE (V)
= 125°C
T
T
A
J
= 25°C
= -55°C
OUTPUT CURRENT
OPEN LOOP)
1mA
200
TIME ( s)
T
A
= 25°C
400
10mA
0
I
C
L
V
600
= 1mA
L
OUT
= 1 F
0.5
= 5V
100mA
1.0
800