LT3083

RECOMMENDED FOR NEW DESIGNS

Adjustable 3A Single Resistor Low Dropout Regulator

Data Sheet (Rev. B) Product Selection Table

Part Models: 22
1ku List Price: Starting From $4.55

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Part Details

Outputs May be Paralleled for Higher Current and Heat Spreading
Output Current: 3A
Single Resistor Programs Output Voltage
50µA Set Pin Current: 1% Initial Accuracy
Output Adjustable to 0V
Low Output Noise: 40µVRMS (10Hz to 100kHz)
Wide Input Voltage Range: 1.2V to 23V (DD-Pak and TO-220 Packages)

Low Dropout Voltage: 310mV
<1mV Load Regulation
<0.001%/V Line Regulation
Minimum Load Current: 1mA
Stable with Minimum 10µF Ceramic Capacitor
Current Limit with Foldback and Overtemperature Protection
Available in 16-Lead TSSOP, 12-Lead 4mm × 4mm DFN, 5-Lead TO-220 and 5-Lead Surface Mount DD-PAK Packages

Part Models: 22
1ku List Price: Starting From $4.55

Documentation

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
LT3083EDF#PBF	12-Lead DFN (4mm x 4mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083EDF#TRPBF	12-Lead DFN (4mm x 4mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083EFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083EFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083EQ#PBF	5-Lead DD Pak	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083EQ#TRPBF	5-Lead DD Pak	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083ET#PBF	5-Lead TO-220	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083IDF#PBF	12-Lead DFN (4mm x 4mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083IDF#TRPBF	12-Lead DFN (4mm x 4mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083IFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083IFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083IQ#PBF	5-Lead DD Pak	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083IQ#TRPBF	5-Lead DD Pak	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083IT#40PBF	5-Lead TO-220 (Flow 40)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083IT#PBF	5-Lead TO-220	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083MPDF#PBF	12-Lead DFN (4mm x 4mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083MPDF#TRPBF	12-Lead DFN (4mm x 4mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083MPFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083MPFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083MPQ#PBF	5-Lead DD Pak	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083MPQ#TRPBF	5-Lead DD Pak	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3083MPT#PBF	5-Lead TO-220	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL
		PCN22_0068_Form Material_Report Delta Qualification Matrix
LT3083EFE#PBF	PRODUCTION
LT3083EFE#TRPBF	PRODUCTION
LT3083IFE#PBF	PRODUCTION
LT3083IFE#TRPBF	PRODUCTION
LT3083MPFE#PBF	PRODUCTION
LT3083MPFE#TRPBF	PRODUCTION
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
		PCN22_0175_Form Material_Report Delta Qualification Matrix
LT3083EQ#PBF	PRODUCTION
LT3083EQ#TRPBF	PRODUCTION
LT3083ET#PBF	PRODUCTION
LT3083IQ#PBF	PRODUCTION
LT3083IQ#TRPBF	PRODUCTION
LT3083IT#40PBF	PRODUCTION
LT3083IT#PBF	PRODUCTION
LT3083MPQ#PBF	PRODUCTION
LT3083MPQ#TRPBF	PRODUCTION
LT3083MPT#PBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Digital Power System Managers 1
LTC2977	RECOMMENDED FOR NEW DESIGNS	8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement
PowerPath, Ideal Diodes, and Load Switches 1
LTC4370	RECOMMENDED FOR NEW DESIGNS	Two-Supply Diode-OR Current Balancing Controller
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LT4363	RECOMMENDED FOR NEW DESIGNS	High Voltage Surge Stopper with Current Limit

Parts	Product Life Cycle	Description
LT3081	RECOMMENDED FOR NEW DESIGNS	1.5A Single Resistor Rugged Linear Regulator with Monitors

Tools & Simulations

LTspice 3

Models for the following parts are available in LTspice:

LT3083

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

LT3083EQ Demo Board | Single Resistor Prog Low Dropout Linear Regulator, 1.7V ≤ VIN ≤ 23V, VOUT = 1.2V/1.5V/1.8V/2.5V/3.3V/5.0V @ 3A

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Product Details

Demonstration circuit 1585A is an adjustable 3A linear regulator featuring the LT3083 in the DD-PAK-5 package. Architected as a precision current source and voltage follower, the LT3083 can be used in many applications requiring high current, adjustability to zero output, and no heat sink. Internal protection circuitry includes current limiting and thermal limiting.The device brings out the collector of the pass transistor to allow low dropout operation when used with multiple supplies.

The demo board oprerates with an input supply voltage range of 1.7V to 23V. A control voltage bias supply that is 1.2V to 1.4V higher than the input voltage is required for proper regulation. A key feature of the LT3083 is its wide output voltage range. The DC1585A's jumper-selectable output voltage can be set to 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V, or a user-selectable value. DC1585A can be used as a high current linear regulator, a post regulator for switching supplies, a variable voltage supply or a low output voltage power supply.

Resources

DC1585A - Schematic
38.00K

DC1585A - Design Files
991.00K

DC1585A - Demo Manual
202.00K

Reference Designs

View Detailed Reference Design

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

Part Used

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LTC3025-2
LTC3025-3
LTC3025-4

LTC3855

LT3080-1

LT3021
LT3021-1.2
LT3021-1.5
LT3021-1.8

View Detailed Reference Design

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

Part Used

View Detailed Reference Design

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