AME AME1084DCDT-3, AME1084DCDT, AME1084DCCS, AME1084DCBT, AME1084CCDT-3, AME1084ACBT, AME1084CCDT, AME1084CCCS, AME1084CCBT, AME1084BCDT-3, AME1084BCDT, AME1084BCCS, AME1084BCBT, AME1084ACDT-3, AME1084ACDT, AME1084ACCS Datasheet
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Analog Microelectronics, Inc.
AME1084 |
5A Low Dropout |
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Positive Voltage Regulator |
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n General Description
The AME1084 is a 5A low-dropout positive voltage regulator. It is available in fixed and adjustable output voltage versions. Overcurrent and thermal protection are integrated onto the chip. Output current will limit as it reaches the pre-set current or temperature limit. At full rated output current the dropout voltage is 1.4V (max.). AME1084 series regulators provide excellent regulation over line, load and temperature variations.
n Key Features
lLow dropout voltage ¼ 1.4V at 5A
lAdjustable or 3.3V fixed voltage
lLine regulation typically 0.015%
lLoad regulation typically 0.05%
lAdjust pin (ADJ) current less than 90μA
lOvercurrent protection
lThermal protection
lAvailable in TO-220, TO-263, TO-252
n Applications
lHigh Efficiency Linear Regulators
lPost Regulators for Switching Supplies
l5V to 3.3V Voltage Converter
lBattery Charger
n Functional Block Diagram |
n Typical Application |
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Input |
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V IN AME1084V O U T |
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GND |
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Current |
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4.75V to 5.25V |
10μF Tan |
10μF Tan Load |
Limiting |
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Amplifier |
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Thermal |
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Output |
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Protection |
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Figure 2 |
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Error |
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ADJ/GND |
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Amp. |
Bandgap |
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Reference |
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Figure 1
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Analog Microelectronics, Inc.
AME1084
5A Low Dropout
Positive Voltage Regulator
n Pin Configuration
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AME 1084 |
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AME1084 |
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ADJ/GND VOUT |
VIN |
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ADJ/GND VO U T VIN
TO-220 Front View |
To-252 Front View |
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AME 1084
1 2 3
AME 1084
1 2 3
ADJ/GND VO U T VIN |
ADJ/GND VO U T VIN |
TO-263-2 Front View |
TO-263-3 Front View |
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Analog Microelectronics, Inc.
AME1084 |
5A Low Dropout |
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Positive Voltage Regulator |
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n Ordering Information
P a rt Num be r |
M a rking |
Output V olta ge |
P a cka ge |
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AME1084 |
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A M E1084ACBT |
ACBT |
ADJ |
TO-220 |
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AME1084 |
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AME1084BCBT |
BCBT |
1.5 |
TO-220 |
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AME1084 |
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AME1084CCBT |
CCBT |
2.5 |
TO-220 |
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AME1084 |
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AME1084DCBT |
DCBT |
3.3 |
TO-220 |
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AME1084 |
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AME1084ACDT-3 |
ACDT-3 |
ADJ |
TO-263-3 |
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AME1084 |
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AME1084BCDT-3 |
BCDT-3 |
1.5 |
TO-263-3 |
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AME1084 |
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AME1084CCDT-3 |
CCDT-3 |
2.5 |
TO-263-3 |
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AME1084 |
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AME1084DCDT-3 |
DCDT-3 |
3.3 |
TO-263-3 |
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AME1084 |
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AME1084ACDT |
ACDT |
ADJ |
TO-263-2 |
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AME1084 |
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AME1084BCDT |
BCDT |
1.5 |
TO-263-2 |
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AME1084 |
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AME1084CCDT |
CCDT |
2.5 |
TO-263-2 |
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AME1084 |
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AME1084DCDT |
DCDT |
3.3 |
TO-263-2 |
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AME1084 |
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AME1084ACCS |
ACCS |
ADJ |
TO-252 |
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AME1084 |
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AME1084BCCS |
BCCS |
1.5 |
TO-252 |
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AME1084 |
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AME1084CCCS |
CCCS |
2.5 |
TO-252 |
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AME1084 |
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AME1084DCCS |
DCCS |
3.3 |
TO-252 |
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Analog Microelectronics, Inc.
AME1084
5A Low Dropout
Positive Voltage Regulator
n Absolute Maximum Ratings
Parameter |
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Symbol |
Maximum |
Unit |
Input Voltage |
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VIN |
7 |
V |
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TO-220 |
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3 |
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Thermal Resistance (Junction to Case) |
TO-252 |
θJC |
5 |
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TO-263 |
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3 |
oC/W |
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TO-220 |
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50 |
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Thermal Resistance (Junction to Ambient) |
TO-252 |
θJA |
90 |
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TO-263 |
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50 |
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Operating Junction Temperature Range |
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TJ |
0 to 125 |
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Storage Temperature Range |
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T |
-65 to 150 |
oC |
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STG |
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Lead Temperature (10 sec) |
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TLEAD |
260 |
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Analog Microelectronics, Inc.
AME1084 |
5A Low Dropout |
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Positive Voltage Regulator |
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nElectrical Characteristics
1. 1084AXXX
Parameter |
Symbol |
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Test Conditions |
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Min. |
Typ. |
Max. |
Units |
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Reference voltage |
VREF |
VIN = 5V |
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TJ =25OC |
1.238 |
1.250 |
1.262 |
V |
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(adjustable voltage) |
IO = 10mA |
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Over temp. |
1.225 |
1.275 |
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Line regulation |
RegLINE |
VIN = 2.75 - 7V |
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TJ =25OC |
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0.015 |
0.2 |
% |
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IO = 10mA |
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Over temp. |
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0.035 |
0.2 |
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Load regulation |
RegLOAD |
VIN = 5V |
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TJ =25OC |
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0.05 |
0.3 |
% |
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I |
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= 10mA - 5A |
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Over temp. |
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0.2 |
0.4 |
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Dropout voltage |
VD |
VIN = 2.75 - 7V |
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TJ =25OC |
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1.2 |
1.4 |
V |
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VOUT, |
VREF = 1% |
IO = 10mA - 5A |
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Over temp. |
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1.3 |
- |
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Current limit |
IS |
VIN = 2.75 - 7V, Over temp. |
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5.0 |
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A |
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Temperature Coefficient |
TC |
VIN = 2.75 - 7V, IO = 10mA - 5A |
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0.005 |
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%/OC |
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Adjust pin current |
IADJ |
VIN = 2.75 - 7V |
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TJ = 25OC |
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55 |
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IO = 10mA - 5A |
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Over temp. |
- |
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90 |
μA |
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Adjust pin current change |
IADJ |
VIN = 2.75 - 7V, IO = 10mA - 5A |
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0.2 |
5 |
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Over temp. |
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Temperature stability |
TS |
VIN = 5V, IO = 500mA, Over temp. |
0.5 |
0.5 |
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% |
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Minimum load current |
IO |
VIN = 5V |
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5 |
10 |
mA |
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RMS output noise |
VN |
TJ = 25OC |
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0.003 |
- |
%VO |
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Ripple rejection ratio |
RA |
VIN = 5V, IO = 5A, Over temp. |
60 |
72 |
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dB |
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2. 1084DXXX |
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Parameter |
Symbol |
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Test Conditions |
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Min. |
Typ. |
Max. |
Units |
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Output voltage |
Vo |
VIN = 5V |
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TJ =25OC |
3.267 |
3.300 |
3.333 |
V |
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(fixed voltage) |
IO = 0A |
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Over temp. |
3.234 |
3.366 |
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V |
IN |
= 4.5 - 7V |
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T =25OC |
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0.015 |
0.2 |
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Line regulation |
RegLINE |
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J |
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% |
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I |
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= 0A |
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Over temp. |
- |
0.035 |
0.2 |
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O |
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V |
IN |
= 5V |
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T =25OC |
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0.05 |
0.3 |
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Load regulation |
RegLOAD |
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J |
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% |
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I |
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= 0A - 5A |
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Over temp. |
- |
0.2 |
0.4 |
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O |
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Dropout voltage |
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V |
IN |
= 4.5 - 7V |
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T =25OC |
- |
1.2 |
1.4 |
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VD |
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J |
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V |
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VOUT, |
VREF = 1% |
IO = 0A - 5A |
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Over temp. |
- |
1.3 |
- |
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Current limit |
IS |
VIN = 4.5 - 7V, Over temp. |
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5.0 |
- |
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A |
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Quiescent current |
IQ |
VIN=5V, Io=0-5A, Over temp. |
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12 |
13 |
mA |
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Temperature Coefficient |
TC |
VIN = 4.5 - 7V, IO = 0A - 5A |
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0.005 |
- |
%/0C |
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Temperature stability |
TS |
VIN = 5V, IO = 500mA, Over temp. |
0.5 |
0.5 |
- |
% |
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RMS output noise |
V |
N |
T |
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= 25OC |
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0.003 |
- |
%V |
O |
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J |
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Ripple rejection ratio |
RA |
VIN = 5V, IO = 5A, Over temp. |
60 |
72 |
- |
dB |
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5