LT1084
Info: : PRODUCTION
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LT1084

7.5A, 5A, 3A Low Dropout Positive Adjustable Regulators

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $4.55
Features
  • For new designs, please use the TO-220 package instead of the TO-3P package
  • 3-Terminal Adjustable
  • Output Current of 3A, 5A or 7.5A
  • 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, TO-3P and DD Packages
Additional Details
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The LT1083 series of positive adjustable regulators are designed to provide 7.5A, 5A and 3A 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 LT1083/LT1084/LT1085 devices are pin compatible with older 3-terminal regulators. A 10μF output capacitor is required on these new devices. However, this is included in most regulator designs.

Unlike PNP regulators, where up to 10% of the output current is wasted as quiescent current, the LT1083 quiescent current flows into the load, increasing efficiency.

Applications

  • High Efficiency Linear Regulators
  • Post Regulators for Switching Supplies
  • Constant Current Regulators
  • Battery Chargers
Part Models 2
1ku List Price Starting From $4.55

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1084CT#PBF
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LT1084IT#PBF
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Product Lifecycle

PCN

Aug 10, 2022

- 22_0175

Laser Top Mark Conversion for DDPAK & TO220 Packages Assembled in ADPG. Country of Origin Code [MY] To Be Incorporated On Top Mark

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Part Models

Product Lifecycle

PCN

Aug 10, 2022

- 22_0175

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Laser Top Mark Conversion for DDPAK & TO220 Packages Assembled in ADPG. Country of Origin Code [MY] To Be Incorporated On Top Mark

Software & Part Ecosystem

Software & Part Ecosystem

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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