LT3086

RECOMMENDED FOR NEW DESIGNS

40V, 2.1A Low Dropout Adjustable Linear Regulator with Monitoring and Cable Drop Compensation

Data Sheet (Rev. C) Product Selection Table

Part Models: 23
1ku List Price: Starting From $3.61

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Overview

Wide Input Voltage Range: 1.4V to 40V
1 Resistor Sets Output Voltage: 0.4V to 32V
Output Current: 2.1A
±2% Tolerance Over Line, Load and Temperature
Output Current Monitor: I_MON = I_OUT/1000
Temperature Monitor with Programmable Thermal Limit
Programmable Cable Drop Compensation
Parallel Multiple Devices for Higher Current
Dropout Voltage: 330mV
1 Capacitor Soft-Starts Output and Decreases Noise
Low Output Noise: 40μV_RMS (10Hz to 100kHz)
Precision, Programmable External Current Limit
Power Good Flag with Programmable Threshold
Ceramic Output Capacitors: 10μF Minimum
Quiescent Current in Shutdown: <1μA
Reverse-Battery, -Current and -Output Protection
Available in 5mm × 4mm 16-Lead DFN, 16-Lead TSSOP, 7-Lead DD-Pak and 7-Lead TO-220.

LT3086-EP Supports defense and aerospace applications (AQEC standard)

Download LT3086-EP data sheet (pdf)
Military temperature range (−55°C to +125°C)
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Product change notification
Qualification data available on request
V62/22602

The LT3086 is a multi-feature, low dropout, low noise 2.1A linear regulator that operates over a 1.4V to 40V input supply range. Dropout voltage at 2.1A is typically 330mV. One resistor sets output voltage from 0.4V to 32V. Output voltage tolerance is guaranteed to ±2% over line, load and temperature. The LT3086 is stable with ceramic output capacitors, requiring a minimum of 10μF.

The LT3086’s programmable cable drop compensation cancels output voltage errors caused by resistive connections to the load. A master/slave configuration allows paralleling of multiple devices for higher load current and heat spreading without external ballast resistor requirements.

Output current and temperature monitoring along with a power good flag provide system diagnostic and debug capability. Internal fault circuitry includes thermal shutdown and current limit with foldback. Thermal limit and current limit are also externally programmable.

Packages include the thermally enhanced 16-lead (5mm × 4mm) DFN, 16-lead TSSOP, 7-lead DD-Pak and 7-lead TO-220.

Applications

Programmable Linear Regulator
Post Regulator for Switching Supplies
USB Power Supplies
High Reliability Power Supplies

Part Models: 23
1ku List Price: Starting From $3.61

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
LT3086EDHD#PBF	16-Lead DFN (5mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086EDHD#TRPBF	16-Lead DFN (5mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086EFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086EFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086ER#PBF	7-Lead DD Pak	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086ER#TRPBF	7-Lead DD Pak	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086ET7#PBF	7-Lead TO-220	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086FE#TRZ-EP	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086FE#Z-EP	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086HFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086HFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086IDHD#PBF	16-Lead DFN (5mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086IDHD#TRPBF	16-Lead DFN (5mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086IFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086IFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086IR#PBF	7-Lead DD Pak	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086IR#TRPBF	7-Lead DD Pak	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086IT7#PBF	7-Lead TO-220	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086MPFE#PBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086MPFE#TRPBF	16-Lead TSSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086MPR#PBF	7-Lead DD Pak	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086MPR#TRPBF	7-Lead DD Pak	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT3086MPT7#PBF	7-Lead TO-220	Material Declaration Reliablity Data Package Resources	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
LT3086EFE#PBF	PRODUCTION
LT3086EFE#TRPBF	PRODUCTION
LT3086FE#TRZ-EP	PRODUCTION
LT3086FE#Z-EP	PRODUCTION
LT3086HFE#PBF	PRODUCTION
LT3086HFE#TRPBF	PRODUCTION
LT3086IFE#PBF	PRODUCTION
LT3086IFE#TRPBF	PRODUCTION
LT3086MPFE#PBF	PRODUCTION
LT3086MPFE#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
LT3086ER#PBF	PRODUCTION
LT3086ER#TRPBF	PRODUCTION
LT3086ET7#PBF	PRODUCTION
LT3086IR#PBF	PRODUCTION
LT3086IR#TRPBF	PRODUCTION
LT3086IT7#PBF	PRODUCTION
LT3086MPR#PBF	PRODUCTION
LT3086MPR#TRPBF	PRODUCTION
LT3086MPT7#PBF	PRODUCTION

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

Software Resources

Can't find the software or driver you need?

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Power System Management (PSM) & Sequencers 1
LTC2977	RECOMMENDED FOR NEW DESIGNS	8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement
Protection Switches & Controllers 1
LTC4361-1 LTC4361-2		Overvoltage/Overcurrent Protection Controller

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

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LT3086

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

LT3086 Demo Board | Low Dropout Linear Regulator, Monitoring and Cable Drop Compensation, 1.55V ≤ VIN ≤ 40V, VOUT = 1.0V/1.2V/1.5V/3.3V/5V/12V @ 2.1A

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Product Details

Demonstration circuit 1729A is a 2.1A low dropout adjustable linear regulator featuring the LT3086. The device is designed with multiple features and operates over a wide 1.4V to 40V input supply range. The LT3086 requires only one resistor to set the output voltage from 0.4V to 32V and it is stable with ceramic output capacitors requiring a minimum of 10μF.