AMS1085
TYPICAL PERFORMANCE CHARACTERISTICS
Dropout Voltage
OUTPUT VOLTAGE DEVIATION (%)
2
MINIMUM INPUT/OUTPUT
DIFFERENTIAL (V)
0.10
0.05
0
-0.05
-0.10
-0.15
Load Regulation
2.0
OUTPUT VOLTAGE CHANGE (%)
∆I
= 3A
Temperature Stability
1.0
T
J
=25° C
1
T
J
=150° C
0
-1.0
0
0
1
2
3
OUTPUT CURRENT (A)
Ripple Rejection
80
70
RIPPLE REJECTION (dB)
60
50
40
30
20
10
0
100
1k
10k
FREQUENCY (Hz)
Load Transient Response
LOAD
OUTPUT VOLTAGE
CURRENT (A)
DEVIATION (V)
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
2
1
0
0
50
TIME (µs)
100
C
IN
= 1µF
C
OUT
= 10µF TANTALUM
I
OUT
=I
FULL LOAD
(V
IN
-V
OUT
)≥V
DROPOUT
(V
IN
-V
OUT
)
≥
3V
V
RIPPLE
≤
3V
P-P
V
RIPPLE
≤
0.5V
P-P
4
-0.20
-50 -25
0 25 50 75 100 125 150
TEMPERATURE (° C)
-2.0
-50 -25
0 25 50 75 100 125 150
TEMPERATURE (° C)
Ripple Rejection vs. Current
SHORT-CIRCUIT CURRENT (A)
100
90
RIPPLE REJECTION (dB)
80
70
60
50
40
30
20
10
0
100k
0
0.4
0.6
0.8
1.0
0.2
OUTPUT CURRENT (0 TO I
FULL LOAD
)
Line Transient Response
INPUT
OUTPUT VOLTAGE
DEVIATION (V) DEVIATION (mV)
60
40
20
0
-20
-40
-60
14
13
12
0
0
100
TIME (µs)
200
V
OUT
= 10V
I
IN
= 0.2A
C
IN
= 1µF TANTALUM
C
OUT
= 10µF TANTALUM
f
R
=20kHz
V
RIPPLE
≤
0.5V
P-P
f
R
= 120Hz
V
RIPPLE
≤
3V
P-P
Short-Circuit Current
6
5
4
3
2
1
0
4
6
0
2
8
10 12 14
INPUT/OUTPUT DIFFERENTIAL (V)
Maximum Power Dissipation*
50
C
ADJ
= 0
C
ADJ
= 0
40
POWER (W)
30
20
10
~
3
~
V
OUT
= 10V
V
IN
= 13V
PRELOAD = 100mA
~
~
~
~
~
~
50 60 70 80 90 100 110 120 130 140 150
CASE TEMPERATURE (° C)
*AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
