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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
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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
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LT1084
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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 |
|---|---|---|---|
| LT1084CT#PBF |
3-Lead TO-220
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| LT1084IT#PBF |
3-Lead TO-220
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- LT1084CT#PBF
- Pin/Package Drawing
- 3-Lead TO-220
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Material Declaration
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HTML
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- CAD Symbols, Footprints, and 3D Models
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SamacSys
- LT1084IT#PBF
- Pin/Package Drawing
- 3-Lead TO-220
- Documentation
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HTML
Material Declaration
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HTML
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- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
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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
LT1084CT#PBF
PRODUCTION
LT1084IT#PBF
PRODUCTION
Filter by Model
Part Models
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
LT1084CT#PBF
PRODUCTION
LT1084IT#PBF
PRODUCTION
Software & Part Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
|
PRODUCTION |
7.5A, 5A, 3A Low Dropout Positive Adjustable Regulators |
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.
Lt Spice
