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LT1084 Regulator: Pinout, Equivalent and Datasheet

PMIC - Voltage Regulators - Linear TO-220-3 0°C~125°C LT1084 Over Temperature 5A 75dB (120Hz) IC REG LINEAR POS ADJ 5A TO220-3

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Oct 9, 2021

Primo Pitman

PMIC - Voltage Regulators - Linear TO-220-3 0°C~125°C LT1084 Over Temperature 5A 75dB (120Hz) IC REG LINEAR POS ADJ 5A TO220-3

The LT1084 is a positive adjustable Low Dropout Regulator designed to provide output current of 5A with higher efficiency than currently available devices. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.

LT1084CT#PBF

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LT1084 Pinout

LT1084 CAD Model

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3D Model

LT1084 Overview

The LT1084 positive adjustable regulator is designed to provide 5A with higher efficiency than currently available devices. All internal circuitry is designed to operate down to 1V input-to-output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the reference voltage to 1%. Current limit is also trimmed, minimizing the stress on both the regulator and power source circuitry under overload conditions. The LT1084 device is pin compatible with older 3-terminal regulators. A 10µF output capacitor is required on the new device. However, this is included in most regulator designs.

This article provides you with a basic overview of the LT1084, including its pin descriptions, features and specifications, etc., to help you quickly understand what LT1084 is.

LT1084 Features

● 3-Terminal Adjustable

● Output Current of 5A

● Operates Down to 1V Dropout

● Guaranteed Dropout Voltage at Multiple Current Levels

● Line Regulation: 0.015%

● Load Regulation: 0.1% 

●100% Thermal Limit Functional Test

● Fixed Versions Available

● Available in 3-Lead Plastic TO-220 and DD Packages

Specifications

LT1084CT#PBF Tech Specifications

Linear Technology/Analog Devices LT1084CT#PBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology/Analog Devices LT1084CT#PBF.

Product Attribute Attribute Value
Factory Lead Time8 Weeks
Mounting TypeThrough Hole
Package / CaseTO-220-3
Surface MountNO
Operating Temperature0°C~125°C
PackagingTube
Published2009
JESD-609 Codee3
Part StatusActive
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations3Terminations
ECCN CodeEAR99
Product Attribute Attribute Value
Terminal FinishMatte Tin (Sn) - with Nickel (Ni) barrier
Terminal PositionSINGLE
Peak Reflow Temperature (Cel)NOT SPECIFIED
Number of Functions1Function
Terminal Pitch2.54mm
Time@Peak Reflow Temperature-Max (s)NOT SPECIFIED
Base Part NumberLT1084
Pin Count3
JESD-30 CodeR-PSFM-T3
Number of Outputs1Output
Qualification StatusNot Qualified
Voltage - Input (Max)30V
Product Attribute Attribute Value
Output TypeAdjustable
Output ConfigurationPositive
Voltage - Output (Min/Fixed)1.25V
Number of Regulators1Regulator
Protection FeaturesOver Temperature
Voltage Dropout (Max)1.5V @ 5A
PSRR75dB (120Hz)
Dropout Voltage1-Nom1.3V
Load Regulation-Max(%)0.4%
Input-Output Voltage Differential-Max25V
RoHS StatusROHS3 Compliant
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LT1084 Functional Block Diagram

LT1084 Equivalent

      Model number                       Manufacturer                                        Description
LT1084IT#TRPBF Linear Technology IC VREG 1.2 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.5 V DROPOUT, PSFM3, LEAD FREE, PLASTIC, TO-220, 3 PIN, Adjustable Positive Single Output LDO Regulator
LT1084IT#TR Linear Technology IC VREG 1.2 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.5 V DROPOUT, PSFM3, PLASTIC, TO-220, 3 PIN, Adjustable Positive Single Output LDO Regulator
CS-5205A-1T3 On Semiconductor 1.25 V-13V ADJUSTABLE POSITIVE LDO REGULATOR, 1.25V DROPOUT, PSFM3, STRAIGHT, TO-220, 3 PIN
CLM2850AU Calogic Inc Adjustable Positive LDO Regulator, 1.2V Min, 1.5V Dropout, PSFM3, PLASTIC, TO-220, 3 PIN
LT1084CP(ADJ) Semtech Corporation Adjustable Positive LDO Regulator, 1.2V Min, 1.5V Dropout, PSFM3, TO-247, 3 PIN
LT1084CT Analog Devices Inc Adjustable Positive LDO Regulator, 1.2V Min, 15V Max, 1.5V Dropout, BIPolar, PSFM3
LT1084IT Analog Devices Inc Adjustable Positive LDO Regulator, 1.2V Min, 15V Max, 1.5V Dropout, BIPolar, PSFM3
CS5205A-1GT3 Cherry Semiconductor Corporation Adjustable Positive LDO Regulator, 1.25V Min, 13V Max, 1.25V Dropout, BIPolar, PSFM3, STRAIGHT, TO-220, 3 PIN
LT1084IT#PBF Analog Devices Inc 7.5A, 5A, 3A Low Dropout Positive Adjustable Regulators

LT1084 Application

● High Efficiency Linear Regulators

● Post Regulators for Switching Supplies

● Constant Current Regulators

● Battery Chargers

LT1084 Package

LT1084 Manufacturer

As a member of the S&P 500, Linear Technology Corporation is committed to designing, manufacturing and marketing a extensive line of high performance analog integrated circuits for main companies around the world. Between the analog world and digital electronic products in communications, networks, industry, automobiles, computers, medical, instrumentation, consumer, military and aerospace systems, our products have built an important bridge for them. Our products include not only the production of power management, data conversion, signal conditioning, RF and interface ICs, μModule subsystems, but also wireless sensor network products.

Datasheet PDF

LT1084CT#PBF Documents

Download datasheets and manufacturer documentation for LT1084CT#PBF

Frequently Asked Questions

What is the essential property of the LT1084?
The LT1084 is a positive adjustable Low Dropout Regulator designed to provide output current of 5A with higher efficiency than currently available devices.
Is the LT1084 device compatible with the old 3-terminal regulator pins?
The LT1084 device is pin compatible with older 3-terminal regulator.
Does the LT1084 series 3-terminal adjustable regulators provide the protection expected in high-performance voltage regulators?
The LT1084 family of 3-terminal adjustable regulators is easy to use and has all the protection features that are expected in high performance voltage regulators. They are short-circuit protected, and have safe area protection as well as thermal shutdown to turn off the regulator should the junction temperature exceed about 165°C.
FAQ
What is the essential property of the LT1084?
The LT1084 is a positive adjustable Low Dropout Regulator designed to provide output current of 5A with higher efficiency than currently available devices.
Is the LT1084 device compatible with the old 3-terminal regulator pins?
The LT1084 device is pin compatible with older 3-terminal regulator.
Does the LT1084 series 3-terminal adjustable regulators provide the protection expected in high-performance voltage regulators?
The LT1084 family of 3-terminal adjustable regulators is easy to use and has all the protection features that are expected in high performance voltage regulators. They are short-circuit protected, and have safe area protection as well as thermal shutdown to turn off the regulator should the junction temperature exceed about 165°C.

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