LM1084IT-3.3/NOPB National Semiconductor, LM1084IT-3.3/NOPB Datasheet

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LM1084IT-3.3/NOPB

Manufacturer Part Number
LM1084IT-3.3/NOPB
Description
IC REG POSITIVE 5A LDO TO220-3
Manufacturer
National Semiconductor
Type
Voltage Regulatorr

Specifications of LM1084IT-3.3/NOPB

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 27V
Voltage - Dropout (typical)
1.3V @ 5A
Number Of Regulators
1
Current - Output
5A
Current - Limit (min)
5.5A
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-3 (Straight Leads)
Current, Output
5 A
Current, Supply
5 mA
Package Type
TO-220
Regulation, Line
0.5 mV
Regulation, Load
3 mV
Regulator Type
Low Dropout
Resistance, Thermal, Junction To Case
0.65 °C/W (Control Section), 2.7 °C/W (Output Section)
Temperature, Operating, Range
-40 to +125 °C
Voltage, Dropout
1.3 V
Voltage, Input
27 V
Voltage, Noise
0.003 %
Voltage, Output
3.3 V
Voltage, Supply, Rejection Ratio
72 dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LM1084IT-3.3
*LM1084IT-3.3/NOPB
LM1084IT-3.3
LM1084
5A Low Dropout Positive Regulators
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 ref-
erence, current limiting and thermal shutdown.
The LM1084 series is available in TO-220 and TO-263 pack-
ages. Refer to the LM1085 for the 3A version, and the
LM1086 for the 1.5A version.
Connection Diagrams
Basic Functional Diagram, Adjustable Version
Top View
Top View
TO-220
TO-263
10094635
10094636
10094665
Features
n Available in 3.3V, 5.0V, 12V and Adjustable Versions
n Current Limiting and Thermal Protection
n Output Current
n Industrial Temperature Range
n Line Regulation
n Load Regulation
Applications
n Post Regulator for Switching DC/DC Conveter
n High Efficiency Linear Regulators
n Battery Charger
1.2V to 15V Adjustable Regulator
Application Circuit
0.015% (typical)
−40˚C to 125˚C
10094652
0.1% (typical)
5A

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LM1084IT-3.3/NOPB Summary of contents

Page 1

... General Description The LM1084 is a series of low dropout voltage positive regulators with a maximum dropout of 1. 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 also available in three fixed voltages: 3 ...

Page 2

... Part Number Transport Media LM1084IS-ADJ Rails LM1084ISX-ADJ Tape and Reel LM1084IS-12 Rails LM1084ISX-12 Tape and Reel LM1084IS-3.3 Rails LM1084ISX-3.3 Tape and Reel LM1084IS-5.0 Rails LM1084ISX-5.0 Tape and Reel LM1084IT-ADJ Rails LM1084IT-12 Rails LM1084IT-3.3 Rails LM1084IT-5.0 Rails 2 NSC Drawing TS3B T03B 10094634 ...

Page 3

... Absolute Maximum Ratings 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 LM1084-12 LM1084-3.3 LM1084-5.0 Power Dissipation (Note 2) Electrical Characteristics Typicals and limits appearing in normal type apply for T tion temperature range for operation ...

Page 4

Electrical Characteristics Typicals and limits appearing in normal type apply for T tion temperature range for operation. Symbol Parameter I Current Limit LM1084-ADJ LIMIT V − −V IN LM1084-3 LM1084-5 10V IN ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted 3-Lead TO-263 NS Package Number TS3B 3-Lead TO-220 NS Package Number T03B 12 ...

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