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LT3082: 200mA Single Resistor Low Dropout Linear Regulator Data Sheet7/31/2009PDF294K
Overview
Features and Benefits
- 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
Product Details
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
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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Tools & Simulations
LTspice
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LT3082
Reference Designs (2)
Design Resources
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LT3082 Discussions
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.