Analog Microelectronics, Inc.
AME1084
5A Low Dropout
Positive Voltage Regulator
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General Description
The AME1084 is a 5A low-dropout positive voltage regu-
lator. It is available in fixed and adjustable output volt-
age 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.
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Key Features
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Low dropout voltage
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1.4V at 5A
Adjustable or 3.3V fixed voltage
Line regulation typically 0.015%
Load regulation typically 0.05%
Adjust pin (ADJ) current less than 90µA
Overcurrent protection
Thermal protection
Available in TO-220, TO-263, TO-252
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Applications
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High Efficiency Linear Regulators
Post Regulators for Switching Supplies
5V to 3.3V Voltage Converter
Battery Charger
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Functional Block Diagram
Input
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Typical Application
V
IN
AME1084
V
O U T
GND
10µF Tan
Load
Current
Limiting
Amplifier
Thermal
Protection
4.75V to 5.25V
10µF Tan
Output
Figure 2
Error
Amp.
Bandgap
Reference
Figure 1
ADJ/GND
1
AME [ ANALOG MICROELECTRONICS ]
