AME, Inc.
1
AME1084
5A Low Dropout
Positive Voltage Regulator
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Typical Application
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Functional Block Diagram
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Low dropout voltage ----- 1.4V at 5A
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Adjustable or 3.3V fixed voltage
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Line regulation typically 0.015%
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Load regulation typically 0.05%
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Adjust pin (ADJ) current less than 90
A
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Overcurrent protection
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Thermal protection
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Available in TO-220, TO-263, TO-252
The AME1084 is a 5A low-dropout positive voltage regu-
lator. It is available in fixed and adjustable output voltage
versions. Overcurrent and thermal protection are inte-
grated onto the chip. Output current will limit as it reaches
the pre-set current or temperature limit. At full rated out-
put current the dropout voltage is 1.4V (max.). AME1084
series regulators provide excellent regulation over line,
load and temperature variations.
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High Efficiency Linear Regulators
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Post Regulators for Switching Supplies
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5V to 3.3V Voltage Converter
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Battery Charger
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General Description
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Features
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Applications
Thermal
Protection
Bandgap
Reference
Current
Limiting
Amplifier
Input
Output
ADJ/GND
Error
Amp.
AME1084
Load
10
F Tan
GND
V
OUT
4.75V to
5.25V
V
IN
10
F Tan
AME, Inc.
4
5A Low Dropout
Positive Voltage Regulator
AME1084
Part Number
Marking
Output Voltage Package
Operating Temp. Range
AME1084BCCS
AME1084
BCCS
yyww
1.5
TO-252
0
o
C to 70
o
C
AME1084CCCS
AME1084
CCCS
yyww
2.5
TO-252
0
o
C to 70
o
C
AME1084DCCS
AME1084
DCCS
yyww
3.3
TO-252
0
o
C to 70
o
C
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Absolute Maximum Ratings
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
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Ordering Information (contd.)
Please consult AME sales office or authorized Rep./Distributor for other voltage accuracy and package type availabil-
ity.
Symbol
Maximum
Unit
V
IN
7
V
TO-220
3
TO-252
5
TO-263
3
TO-220
50
TO-252
90
TO-263
50
TO-220
3000
TO-252
1200
mW
TO-263
2800
T
J
0 to 125
T
STG
- 65 to 150
T
LEAD
260
P
D
Internal Power Dissipation
(
T = 100
o
C)
o
C/W
Thermal Resistance
(Junction to Ambient)
JA
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (10 Sec)
o
C
Parameter
Input Voltage
Thermal Resistance
(Junction to Case)
JC
AME, Inc.
5
AME1084
5A Low Dropout
Positive Voltage Regulator
Parameter
Symbol
Min
Typ
Max
Units
T
J
=25
o
C
1.485
1.515
Over temp.
1.470
1.530
T
J
=25
o
C
-
0.015
0.2
Over temp.
-
0.035
0.2
T
J
=25
o
C
-
0.05
0.3
Over temp.
-
0.2
0.4
T
J
=25
o
C
-
1.2
1.4
Over temp.
-
1.3
-
Current limit
I
S
5.0
-
-
A
Temperature Coefficient
T
C
-
0.005
-
%/
o
C
Temperature stability
T
S
-
0.5
-
%
RMS output noise
V
N
-
0.003
-
%V
O
Ripple rejection ratio
R
A
-
72
-
dB
Vo
V
Line regulation
Reg
LINE
%
Output voltage
(fixed voltage)
V
IN
= 5V
I
O
= 0A
V
IN
= 4.5 - 7V
I
O
= 0A
1.500
Load regulation
Reg
LOAD
%
V
D
V
Dropout voltage
VOUT,
VREF = 1%
V
IN
= 5V
I
O
= 0A - 5A
I
O
= 0A - 5A
13
mA
T
J
= 25
o
C
Test Condition
Quiescent current
(fixed model)
I
Q
V
IN
=5V, Io=0-5A, Over temp.
-
12
V
IN
= 5V, I
O
= 5A, Over temp.
V
IN
= 4.5 - 7V, Over temp.
V
IN
= 4.5 - 7V, I
O
= 0A - 5A
V
IN
= 5V, I
O
= 500mA, Over temp.
Parameter
Symbol
Min
Typ
Max
Units
T
J
=25
o
C
1.238
1.262
Over temp.
1.225
1.275
T
J
=25
o
C
-
0.015
0.2
Over temp.
-
0.035
0.2
T
J
=25
o
C
-
0.05
0.3
Over temp.
-
0.2
0.4
T
J
=25
o
C
-
1.2
1.4
Over temp.
-
1.3
-
Current limit
I
S
5.0
-
-
A
Temperature Coefficient
T
C
-
0.005
-
%/
o
C
T
J
= 25
o
C
-
55
-
Over temp.
-
-
90
Temperature stability
T
S
-
0.5
-
%
Minimum load current
I
O
10
-
-
mA
RMS output noise
V
N
-
0.003
-
%V
O
Ripple rejection ratio
R
A
-
72
-
dB
1.250
V
Line regulation
Reg
LINE
%
Reference voltage
(adjustable voltage)
V
IN
= 5V
I
O
= 10mA
V
IN
= 2.75 - 7V
I
O
= 10mA
Dropout voltage
VOUT,
VREF = 1%
V
IN
= 5V
I
O
= 10mA - 5A
I
O
= 10mA - 5A
V
REF
Reg
LOAD
%
V
D
V
A
5
V
IN
= 2.75 - 7V
I
O
= 10mA - 5A
Adjust pin current change
I
ADJ
-
0.2
V
IN
= 2.75 - 7V, I
O
= 10mA - 5A
Over temp.
Test Condition
V
IN
= 5V
T
J
= 25
o
C
V
IN
= 2.75 - 7V, Over temp.
V
IN
= 2.75 - 7V, I
O
= 10mA - 5A
V
IN
= 5V, I
O
= 500mA, Over temp.
Adjust pin current
I
ADJ
Load regulation
V
IN
= 5V, I
O
= 5A, Over temp.
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Electrical Specifications
AME1084Axxx
AME1084Bxxx
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