5A Low Dropout Positive 3 terminal voltage regulator , LM1084IT -
ADJ
General Description
The LM1084 is a series of low dropout voltage positive regulators
with a maximum dropout of 1.5V at 5A of load current. It has the
same pin-out as National Semiconductor’s industry standard LM317.
The LM1084 is available in an adjustable version, which can set the
output voltage with only two external resistors. It is also
available in three fixed voltages: 3.3V, 5.0V and 12.0V. The fixed
versions intergrate the adjust resistors.
The LM1084 circuit includes a zener trimmed bandgap reference,
current limiting and thermal shutdown.
The LM1084 series is available in TO-220 and TO-263 packages. Refer
to the LM1085 for the 3A version, and the LM1086 for the 1.5A
version.
Features
► Available in 3.3V, 5.0V, 12V and Adjustable Versions
► Current Limiting and Thermal Protection
► Output Current 5A n Industrial Temperature Range −40˚C to 125˚C
► Line Regulation 0.015% (typical)
► Load Regulation 0.1% (typical)
Applications
► Post Regulator for Switching DC/DC Conveter
► High Efficiency Linear Regulators
► Battery Charger
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please
contact the National Semiconductor Sales Office/ Distributors for
availability and specifications.
Maximum Input to Output Voltage Differential
LM1084-ADJ 29V
LM1084-12 18V
LM1084-3.3 27V
LM1084-5.0 25V
Power Dissipation (Note 2) Internally Limited
Junction Temperature (TJ)(Note 3) 150˚C
Storage Temperature Range -65˚C to 150˚C
Lead Temperature 260˚C, to 10 sec
ESD Tolerance (Note 4) 2000V
