LM1084
LM1084 is 5A Low Dropout Positive Regulators manufactured by National Semiconductor.
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 n Available in 3.3V, 5.0V, 12V and Adjustable Versions n Current Limiting and Thermal Protection n Output Current
5A n Industrial Temperature Range
- 40˚C to 125˚C n Line Regulation
0.015% (typical) n Load Regulation
0.1% (typical)
Applications n Post Regulator for Switching DC/DC Conveter n High Efficiency Linear Regulators n Battery Charger
Connection Diagrams
TO-220
Application Circuit
Top View
TO-263
Top View
Basic Functional Diagram, Adjustable Version
1.2V to 15V Adjustable Regulator
© 2005 National Semiconductor Corporation DS100946
.national.
Ordering Information
Package 3-lead TO-263
Temperature Range
- 40˚C to +125˚C
3-lead TO-220
- 40˚C to + 125˚C
Simplified Schematic
Part Number LM1084IS-ADJ LM1084ISX-ADJ LM1084IS-12 LM1084ISX-12 LM1084IS-3.3 LM1084ISX-3.3 LM1084IS-5.0 LM1084ISX-5.0 LM1084IT-ADJ LM1084IT-12 LM1084IT-3.3 LM1084IT-5.0
Transport Media Rails
Tape and Reel Rails
Tape and Reel Rails
Tape and Reel Rails
Tape and Reel Rails Rails Rails Rails
NSC Drawing...
