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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Part Details

  • 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: IMON = IOUT/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: 40μVRMS (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
LT3086
40V, 2.1A Low Dropout Adjustable Linear Regulator with Monitoring and Cable Drop Compensation
5V, 2.1A USB Supply with Cable Drop Compensation Transient Response with Cable Drop Compensation (CDC) Product Package 1 LT3086-EP Pin Configuration Product Package 3 Product Package 4
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Documentation

Data Sheet 3

Reliability Data 1

User Guide 1

Technical Articles 2

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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
Low Voltage Hot Swap Controllers 1
LTC4361-1
LTC4361-2
Overvoltage/Overcurrent Protection Controller
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Tools & Simulations

LTspice 3

Models for the following parts are available in LTspice:

  • LT3086
LTspice

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

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
DC1729A

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.
DC1729A
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
DC1729A Demo Board DC1729A Demo Board DC1729A Demo Board DC1729A Demo Board DC1729A Schematic

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RE: LT3086 as Adjustable Voltage Controlled Current Source, equation for output current
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