LT3082
LT3082
RECOMMENDED FOR NEW DESIGNS200mA Single Resistor Low Dropout Linear Regulator
- Part Models
- 14
- 1ku List Price
- Starting From $2.17
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Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Design Note 1
Technical Articles 2
Video 1
Product Selection Guide 1
Product Selector Card 1
Brochure 1
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) | ||
| LT3082EDD#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT3082EST#PBF | 3-Lead SOT-223 | ||
| LT3082EST#TRPBF | 3-Lead SOT-223 | ||
| LT3082ETS8#TRMPBF | 8-Lead SOT-23 | ||
| LT3082ETS8#TRPBF | 8-Lead SOT-23 | ||
| LT3082IDD#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT3082IDD#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LT3082IST#PBF | 3-Lead SOT-223 | ||
| LT3082IST#TRPBF | 3-Lead SOT-223 | ||
| LT3082ITS8#TRMPBF | 8-Lead SOT-23 | ||
| LT3082ITS8#TRPBF | 8-Lead SOT-23 | ||
| LT3082MPST#PBF | 3-Lead SOT-223 | ||
| LT3082MPST#TRPBF | 3-Lead SOT-223 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
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| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC4370 | RECOMMENDED FOR NEW DESIGNS | Two-Supply Diode-OR Current Balancing Controller |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT3082
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.
Evaluation Kits
Reference Designs
Part Used
