AMS2905
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at I
OUT
= 0 mA, and T
J
= +25°C unless otherwise specified.
Parameter
Dropout Voltage
(V
IN
-
V
OUT
)
Current Limit
Minimum Load
Current
Quiescent Current
Ripple Rejection
Device
AMS2905-1.5/-2.5/-2.85/
-3.3/-5.0
AMS2905-1.5/-2.5/-2.85/
-3.3/-5.0
AMS2905
AMS2905-1.5/-2.5/-2.85/
-3.3/-5.0
AMS2905
AMS2905-1.5
AMS2905-2.5
AMS2905-2.85
AMS2905-3.3
AMS2905-5
Conditions
∆V
OUT
,
∆V
REF
= 1%, I
OUT
= 500mA (Note 4)
(V
IN
- V
OUT
) = 5V
(V
IN
- V
OUT
) = 12V (Note 5)
V
IN
≤
12V
f =120Hz , C
OUT
= 25µF Tantalum, I
OUT
= 500mA,
(V
IN
-V
OUT
) = 3V, C
ADJ
=25µF
f =120Hz , C
OUT
= 25µF Tantalum, I
OUT
= 500mA,
V
IN
= 6V
f =120Hz , C
OUT
= 25µF Tantalum, I
OUT
= 500mA,
V
IN
= 6V
f =120Hz , C
OUT
= 25µF Tantalum, I
OUT
= 500mA,
V
IN
= 6V
f =120Hz , C
OUT
= 25µF Tantalum, I
OUT
= 500mA
V
IN
= 6.3V
f =120Hz , C
OUT
= 25µF Tantalum, I
OUT
= 500mA
V
IN
= 8V
T
A
= 25°C, 30ms pulse
10mA
≤
I
OUT
≤
500mA , 1.5V≤ (V
IN
- V
OUT
)
≤
12V
10mA
≤
I
OUT
≤
500mA , 1.5V≤ (V
IN
- V
OUT
)
≤
12V
Min
Typ
1.1
1,000
5
5
Max
1.3
Units
V
mA
10
10
mA
mA
dB
dB
dB
dB
dB
dB
60
60
60
60
60
60
75
72
72
72
72
68
0.008
55
120
0.2
0.5
5
0.04
Thermal Regulation
Adjust Pin Current
Adjust Pin Current
Change
Temperature Stability
Long Term Stability
RMS Output Noise
(% of V
OUT
)
Thermal Resistance
Junction-to-Case
AMS2905
AMS2905
AMS2905
%W
µA
µA
µA
%
T
A
=125°C, 1000Hrs
T
A
= 25°C , 10Hz
≤
f
≤
10kHz
0.3
0.003
1
%
%
15
°C/W
Parameters identified with
boldface type
apply over the full operating temperature range.
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and test conditions, see the
Electrical Characteristics
.
The guaranteed specifications apply only for the test conditions listed.
Note 2:
Line and Load regulation are guaranteed up to the maximum power dissipation of 1.2W for SOT-223 package and 0.9W for SOT-89 package. Power
dissipation is determined by the input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full
input/output range.
Note 3:
See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction
temperature by low duty cycle pulse testing. Load regulation is measured at the output lead ~1/8” from the package.
Note 4:
Dropout voltage is specified over the full output current range of the device.
Note 5:
Minimum load current is defined as the minimum output current required to maintain regulation. When 1.5V
≤
(V
IN
- V
OUT
)
≤
12V the device is
guaranteed to regulate if the output current is greater than 10mA.
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
