AMS2954
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Dropout Voltage
Short Circuit Current
Dropout Voltage
450
400
350
300
250
200
150
100
600
500
400
300
500
400
300
200
IL= 250mA
~
~
TJ = 25°C
100
50
0
100
0
IL= 100mA
-75 -50 -25
0
25 50 75 100 125 150
-75 -50 -25
0
25 50 75 100 125 150
100mA
10mA
100mA
250mA
TEMPERATURE (° C)
TEMPERATURE (° C)
OUTPUT CURRENT
AMS2954 Minimum Operating Voltage
AMS2954 Feedback Bias Current
AMS2954 Feedback Pin Current
20
10
50
2.2
2.1
PIN 7 DRVEN BY EXTERNAL
SOURCE (REGULATOR RUN
OPEN LOOP)
0
-50
2.0
1.9
0
TA = 125°C
-100
-10
-150
-200
-250
1.8
1.7
TA
25°C
=
-20
-30
TA = -55°C
1.6
-75
125
0
0.5
0
100
150
125
-75 -50 -25
0
25 50 75 100
150
-2.0 -1.5 -1.0 -0.5
1.0
-50 -25
25 50
75
TEMPERATURE (° C)
TEMPERATURE (° C)
FEEDBACK VOLTAGE (V)
AMS2954 Error Comparator Output
AMS2954 Comparator Sink Current
Line Transient Response
100
mV
50
9
8
2.5
VOUT= 5V
TA
=
125°C
mV
2.0
1.5
1.0
0.5
0.0
7
6
5
50k RESISTOR TO
EXTERNAL 5V SUPPLY
0
TA
=
C = 1
F
m
-50
mV
L
25°C
IL= 1mA
HYSTERESIS
4
3
2
1
0
VOUT= 5V
~
~
8V
6V
TA = -55°C
50k
RESISTOR
TO VOUT
4V
7
0
1
2
3
4
5
6
8
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
OUTPUT LOW VOLTAGE (V)
0
200
400
600
800
INPUT VOLTAGE (V)
TIME (ms)
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
