Analog Microelectronics, Inc.
3A Low Dropout
Positive Voltage Regulator
AME1085
n Electrical Characteristics
AME1085AXXX
Parameter
Symbol
Test Conditions
Min.
Typ.
Max. Units
Reference voltage
VIN = 5V
T =250C
1.238
1.262
V
J
VREF
1.250
(adjustable voltage)
IO = 10mA
Over temp. 1.225
1.275
VIN = 2.75 - 7V
IO = 10mA
TJ =250C
-
0.015
0.035
0.05
0.2
0.2
%
Line regulation
RegLINE
RegLOAD
VD
Over temp.
-
0.2
VIN = 5V
T =250C
-
0.3
%
J
Load regulation
Dropout voltage
IO = 10mA - 3A
Over temp.
TJ =250C
-
-
0.4
VIN = 2.75 - 7V
1.2
1.4
V
V
,
VREF = 1%
∆
IO = 10mA - 3A
Over temp.
-
1.3
-
∆
OUT
Current limit
IS
TC
TS
IO
VIN = 2.75 - 7V, Over temp.
3.0
-
-
-
-
A
%/OC
Temperature Coefficient
Temperature stability
Minimum load current
RMS output noise
Ripple rejection ratio
VIN = 2.75 - 7V, IO = 10mA - 3A
VIN = 5V, IO = 500mA, Over temp.
VIN = 5V
0.005
0.5
-
-
%
mA
%V0
dB
-
5
10
-
VN
RA
TJ =250C
-
0.003
72
VIN = 5V, IO = 3A, Over temp.
60
-
AME1085DXXX
Parameter
Symbol
Test Conditions
Min.
Typ.
Max. Units
Output voltage
VIN = 5V
IO = 0A
T =250C
3.267
3.333
V
J
Vo
3.300
(fixed voltage)
Over temp. 3.234
3.366
VIN =4.5 - 7V
IO = 0A
TJ =250C
-
0.015
0.035
0.05
0.2
0.2
%
Line regulation
RegLINE
RegLOAD
VD
Over temp.
-
0.2
V
IN = 5V
IO = 0A - 3A
IN = 4.5 - 7V
T =250C
-
-
0.3
%
J
Load regulation
Dropout voltage
Over temp.
TJ =250C
0.4
V
-
1.2
1.4
V
V
,
VREF = 1%
∆
IO = 0A - 3A
Over temp.
-
1.3
-
∆
OUT
Current limit
IS
VIN = 4.5 - 7V, Over temp.
3.0
-
-
A
Quiescent current
(fixed model)
IQ
VIN = 5V, Io=0A - 3A, Over temp.
-
12
13
mA
%/0C
Temperature Coefficient
Temperature stability
RMS output noise
TC
TS
VIN = 4.5 - 7V, IO = 0A - 3A
VIN = 5V, IO = 500mA, Over temp.
TJ =250C
-
-
0.005
0.5
-
-
-
-
%
%V0
dB
VN
RA
-
0.003
72
VIN = 5V, IO = 3A, Over temp.
Ripple rejection ratio
60
4
AME [ ANALOG MICROELECTRONICS ]
