LTC3108
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LTC3108

Ultralow Voltage Step-Up Converter and Power Manager

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LTspice LTC3108 Demo Circuit - Peltier-Powered Energy Harvester for Remote Sensor Applications (30mV to 3.3V) Download 2.00KB LTspice LTC3108 - Power Management Download 1.88 KB
Part Models 8
1ku List Price Starting From $3.54
Features
  • Operates from Inputs of 20mV
  • Complete Energy Harvesting Power Management System
    • Selectable VOUT of 2.35V, 3.3V, 4.1V or 5V
    • LDO: 2.2V at 3mA
    • Logic Controlled Output
    • Reserve Energy Output
  • Power Good Indicator
  • Uses Compact Step-Up Transformers
  • Small 12-Lead (3mm × 4mm) DFN or 16-Lead SSOP Packages
    • Additional Details
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    The LTC3108 is a highly integrated DC/DC converter ideal for harvesting and managing surplus energy from extremely low input voltage sources such as TEGs (thermoelectric generators), thermopiles and small solar cells. The step-up topology operates from input voltages as low as 20mV. The LTC3108 is functionally equivalent to the LTC3108-1 except for its unique fixed VOUT options.

    Using a small step-up transformer, the LTC3108 provides a complete power management solution for wireless sensing and data acquisition. The 2.2V LDO powers an external microprocessor, while the main output is programmed to one of four fixed voltages to power a wireless transmitter or sensors. The power good indicator signals that the main output voltage is within regulation. A second output can be enabled by the host. A storage capacitor provides power when the input voltage source is unavailable. Extremely low quiescent current and high efficiency design ensure the fastest possible charge times of the output reservoir capacitor.

    The LTC3108 is available in a small, thermally enhanced 12-lead (3mm × 4mm) DFN package and a 16-lead SSOP package.

    Output Voltage (Switcher)
    LTC3108 Selectable 2.35V, 3.3V, 4.1V or 5V
    LTC3108-1 Selectable 2.5V, 3V, 3.7V or 4.5V


    Applications

    • Remote Sensors and Radio Power
    • Surplus Heat Energy Harvesting
    • HVAC Systems
    • Industrial Wireless Sensing
    • Automatic Metering
    • Building Automation
    • Predictive Maintenance
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    file View Data Sheet
    Documentation View All Documentation
    LTspice LTC3108 Demo Circuit - Peltier-Powered Energy Harvester for Remote Sensor Applications (30mV to 3.3V) Download 2.00KB LTspice LTC3108 - Power Management Download 1.88 KB
    Part Models 8
    1ku List Price Starting From $3.54
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    LTC3108

    Documentation

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    Data Sheet

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    UPDATED 08/15/2013
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    LTC3108: Ultralow Voltage Step-Up Converter and Power Manager Data Sheet

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    UPDATED 08/15/2013
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    LTC3108: Ultralow Voltage Step-Up Converter and Power Manager Data Sheet (Rev.D)

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    UPDATED 10/08/2013
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    LTC3108: 超低電圧昇圧コンバータおよびパワーマネージャ データシート

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    UPDATED 03/04/2010
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    Ultra-Low-Voltage Input Power Converters Support Energy Harvesting redirect icon

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    UPDATED 06/17/2010
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    DC1582B - Demo Manual redirect icon

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    DC2080A - Demo Manual (Rev.A) redirect icon

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    Documentation

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    Practical Ambient Energy Harvesting for WSNs
    Practical Ambient Energy Harvesting for WSNs

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    Power You Can Trust: Achieving Efficient Battery-Powered Solutions

    Press Release 1

    Linear Technology Announces the Missing Link for Energy Harvesting Applications

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    Energy Harvesting Now

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    What Are the Best Applications for IoT in the New World of IC Power Management?

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    2017-09-18

    LTC3108 Video Product Brief

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    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
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    LTC3108EGN#PBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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    LTC3108IDE#PBF 12-Lead DFN (4mm x 3mm w/ EP) external-link
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    LTC3108IGN#PBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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    LTC3108IGN#TRPBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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    Software & Part Ecosystem

    Parts Product Life Cycle Description

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    LTC2935
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    Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds

    Evaluation Kits 3

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    DC2042A

    Energy Harvesting (EH) Multi-Source Demo Board

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    DC2042A

    Energy Harvesting (EH) Multi-Source Demo Board

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    DC2042A
    Energy Harvesting (EH) Multi-Source Demo Board
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    Product Detail

    DC2042A - Demo Board for:
    LTC3588-1 Piezoelectric Energy Harvesting Power Supply
    LTC3108 Ultralow Voltage Step-Up Converter and Power Manager
    LTC3105 400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up
    LTC3459 10V Micropower Synchronous Boost Converter in ThinSOT
    LTC2935 Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds


     


    Resources

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    DC2042A - Demo Manual Download

    1.00M

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    DC2042A - Schematic Download

    121.00K

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    DC2042A - Design Files Download

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    DC1582B-A

    LTC3108EDE Demo Board | Ultralow Voltage Step-Up Converter and Power Manager

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    DC2080A

    Energy Harvesting (EH) Multi-Source Demo Board with Transducers

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    DC2080A

    Energy Harvesting (EH) Multi-Source Demo Board with Transducers

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    DC2080A
    Energy Harvesting (EH) Multi-Source Demo Board with Transducers
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    Product Detail

    The DC2080 is a versatile energy harvesting demo board that is capable of accepting piezoelectric, solar, 4mA to 20mA loops, thermal powered energy sources or any high impedance AC or DC source. The board contains four independent circuits consisting of the following EH ICs:


    • LTC3588-1: Piezoelectric Energy Harvesting Power Supply
    • LTC3108: Ultralow Voltage Step-Up Converter and Power Manager
    • LTC3105: Step-Up DC/DC Converter with Power Point Control and LDO Regulator
    • LTC3459: 10V Micropower Synchronous Boost Converter
    • LTC2935-2 and LTC2935-4: Ultralow Power Supervisor with Power-Fail Output Selectable Thresholds

    The board is designed to connect to the Silicon Labs EFM32™ Wonder Gecko Starter Kit (Part No:EFM32WG-STK3800). It also includes two energy harvester transducers (TEG and Solar) and a terminal block for connecting a high impedance AC source. In addition, many turrets are provided, making it easy to connect additional transducers to the board. The board contains multiple jumpers that allow the board to be configured in various ways. The standard build for the board has 4 jumpers installed out of the possible 12 jumpers. The board is very customizable to the end users’ needs. This compatibility makes it a perfect evaluation tool for any low power energy harvesting system. Please refer to the individual data sheets for the operation of each power management circuit. The application section of the demo manual describes the system level functionality of this board and the various ways it can be used in early design prototyping.


    Click here for information on "Energy Harvesting Solution To Go"!


    To Purchase "Energy Harvesting Solution To Go", click here!

    Resources

    pdf icon

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    DC2080A - Design Files Download

    1.00M

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    DC2080A - Demo Manual (Rev.A) Download

    959.00K

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    DC2080A - Schematic Download

    109.00K

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    Evaluation Kits3

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    DC2042A

    Energy Harvesting (EH) Multi-Source Demo Board
    evaluation kit item images

    DC1582B-A

    LTC3108EDE Demo Board | Ultralow Voltage Step-Up Converter and Power Manager
    evaluation kit item images

    DC2080A

    Energy Harvesting (EH) Multi-Source Demo Board with Transducers

    Tools & Simulations 1

    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.

    To launch ready-to-run LTspice demonstration circuits for this part:

    Step 1: Download and install LTspice on your computer.

    Step 2: Click on the link in the section below to download a demonstration circuit.

    Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

    spice tool Lt Spice

    LTC3108 Demo Circuit - Peltier-Powered Energy Harvester for Remote Sensor Applications (30mV to 3.3V) Download

    2.00K

    spice tool Lt Spice

    LTC3108 - Power Management Download

    1.88 K

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