LT3082
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LT3082

200mA Single Resistor Low Dropout Linear Regulator

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LTspice LT3082 - Demo Circuit - 200mA Single Resistor LDO Linear Regulator (12V to 1.0V @ 200mA) Download 1.00KB LTspice LT3082 - LDO Linear Regulators Download 0.88 KB
Part Models 14
1ku List Price Starting From $1.71
Features
  • Outputs May Be Paralleled for Higher Output Current or Heat Spreading
  • Maximum Output Current: 200mA
  • Wide Input Voltage Range: 1.2V to 40V
  • Output Adjustable to 0V
  • Stable with Minimum 2.2μF Ceramic Capacitors
  • Single Resistor Sets Output Voltage
  • Initial Set Pin Current Accuracy: 1%
  • Low Output Noise: 33μVRMS (10Hz to 100kHz)
  • Reverse-Battery Protection
  • Reverse-Current Protection
  • <1mV Load Regulation Typical
  • <0.001%/V Line Regulation Typical
  • Current Limit and Thermal Shutdown Protection
  • Available in 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm × 3mm DFN Packages
Additional Details
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The LT3082 is a 200mA low dropout linear regulator that can be paralleled to increase output current or spread heat in surface mounted boards. Architected as a precision current source and voltage follower, this regulator benefits many applications requiring high current, adjustability to zero and no heat sink. The LT3082 withstands reverse input voltages and reverse output-to-input voltages without reverse-current flow.

A key feature of the LT3082 is the capability to supply a wide output voltage range. A precision “0” TC 10μA reference current source drives a single resistor to program the output voltage to any level between zero and 38.5V. The LT3082 is stable with only 2.2μF of capacitance on the output; the IC uses small ceramic capacitors that do not require additional ESR as is common with other regulators.

Internal protection circuitry includes reverse-battery and reverse-current protection, current limiting and thermal limiting. The LT3082 is offered in the thermally enhanced 8-lead TSOT-23, 3-lead SOT-223 and 8-lead 3mm × 3mm DFN packages.

Applications

  • All-Surface Mount Power Supply
  • Post Regulator for Switching Supplies
  • Low Parts Count Variable Voltage Supply
  • Low Output Voltage Supply
  • Battery Powered Regulator
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Documentation View All Documentation
LTspice LT3082 - Demo Circuit - 200mA Single Resistor LDO Linear Regulator (12V to 1.0V @ 200mA) Download 1.00KB LTspice LT3082 - LDO Linear Regulators Download 0.88 KB
Part Models 14
1ku List Price Starting From $1.71
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LT3082

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Data Sheet

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UPDATED 07/31/2009
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LT3082: 200mA Single Resistor Low Dropout Linear Regulator Data Sheet

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UPDATED 10/07/2010
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LT3082: 抵抗1本で調整可能な200mA 低損失リニア・レギュレータ データシート

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User Guide

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UPDATED 10/22/2009
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Documentation

Documentation

Solutions Bulletin & Brochure 1

Linear Low Dropout (LDO) Regulator Solutions

Product Selection Guide 1

Not Your Dad's LDO

Product Selector Card 1

New 3-Terminal Regulators Add Functionality

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2017-09-18

Low Voltage Power Supplies

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT3082EDD#PBF 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) external-link
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LT3082EDD#TRPBF 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) external-link
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LT3082EST#PBF 3-Lead SOT-223 external-link
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LT3082EST#TRPBF 3-Lead SOT-223 external-link
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LT3082ETS8#TRMPBF 8-Lead SOT-23 external-link
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LT3082ETS8#TRPBF 8-Lead SOT-23 external-link
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LT3082IDD#PBF 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) external-link
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LT3082IDD#TRPBF 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) external-link
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LT3082IST#PBF 3-Lead SOT-223 external-link
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LT3082IST#TRPBF 3-Lead SOT-223 external-link
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LT3082ITS8#TRMPBF 8-Lead SOT-23 external-link
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LT3082ITS8#TRPBF 8-Lead SOT-23 external-link
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LT3082MPST#PBF 3-Lead SOT-223 external-link
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LT3082MPST#TRPBF 3-Lead SOT-223 external-link
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Software & Part Ecosystem

Software & Part Ecosystem

Parts Product Life Cycle Description

PowerPath, Ideal Diodes, and Load Switches1
LTC4370
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Evaluation Kit

Evaluation Kits 1

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DC1447A

LT3082EDD Demo Board | Programmable 2-Terminal Linear Regulator, 2.8V ≤ VIN ≤ 35V, VOUT = 1.2V/1.8V/2.5V/3.3V/5V @ 200mA

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DC1447A

LT3082EDD Demo Board | Programmable 2-Terminal Linear Regulator, 2.8V ≤ VIN ≤ 35V, VOUT = 1.2V/1.8V/2.5V/3.3V/5V @ 200mA

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DC1447A
LT3082EDD Demo Board | Programmable 2-Terminal Linear Regulator, 2.8V ≤ VIN ≤ 35V, VOUT = 1.2V/1.8V/2.5V/3.3V/5V @ 200mA
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Product Detail

Demonstration circuit 1447A is an adjustable 200mA linear regulator featuring LT3082. Architected as a precision current source and voltage follower, it allows this new regulator to be used in many applications with adjustability to zero output. The LT3082 has an input range of 1.2V to 40V, but the demo board limits this range to 2.8V to 35V. The LT3082 withstands reverse input voltages and reverse output-to-input voltages without reverse-current flow.

Resources

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DC1447A - Design Files Download

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DC1447A - Demo Manual Download

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DC1447A - Schematic Download

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Evaluation Kits1

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DC1447A

LT3082EDD Demo Board | Programmable 2-Terminal Linear Regulator, 2.8V ≤ VIN ≤ 35V, VOUT = 1.2V/1.8V/2.5V/3.3V/5V @ 200mA
Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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LT3082 - Demo Circuit - 200mA Single Resistor LDO Linear Regulator (12V to 1.0V @ 200mA) Download

1.00K

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LT3082 - LDO Linear Regulators Download

0.88 K
Reference Designs

Reference Designs 2

Stratix 10 GX Signal Integrity Development Kit

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Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with Intel PSG to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • The validated power solutions include uModules power products that address time and space constraints while delivering high efficiency, reliability, and low noise.
  • The actual power tree represents the best solution at time of design.
  • A recommended power tree has also been included to present the ideal solution at time of Stratix 10 GX SI development kit release. An updated alternate version of the power tree represents the latest solutions available from Analog Devices. For many applications, an intermediate rail is not ideal, so recommendations for an alternate power tree that allows for direct power conversion from 12V input is provided below.
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Arria 10 (Rev E3- Linear Technology) Dev Kit

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Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
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Reference Designs2

Stratix 10 GX Signal Integrity Development Kit

intel-stratix-10-SI-fpga-development-kit

Arria 10 (Rev E3- Linear Technology) Dev Kit

altera-arria-10-fpga-development-kit

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