LTC3109
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LTC3109

Auto-Polarity, Ultralow Voltage Step-Up Converter and Power Manager

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LTspice LTC3109 - Power Management Download 3.48 KB
Part Models 8
1ku List Price Starting From $4.72
Features
  • Operates from Inputs as Low as ±30mV
  • Less Than ±1°C Needed Across TEG to Harvest Energy
  • Proprietary Auto-Polarity Architecture
  • Complete Energy Harvesting Power Management System
    • Selectable VOUT of 2.35V, 3.3V, 4.1V or 5V
    • 2.2V, 5mA LDO
    • Logic-Controlled Output
    • Energy Storage Capability for Operation During Power Interruption
  • Power Good Indicator
  • Uses Compact Step-up Transformers
  • Small, 20-lead (4mm × 4mm) QFN Package or 20-Lead SSOP
Additional Details
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The LTC3109 is a highly integrated DC/DC converter ideal for harvesting surplus energy from extremely low input voltage sources such as TEGs (thermoelectric generators) and thermopiles. Its unique, proprietary autopolarity topology* allows it to operate from input voltages as low as 30mV, regardless of polarity.

Using two compact step-up transformers and external energy storage elements, the LTC3109 provides a complete power management solution for wireless sensing and data acquisition. The 2.2V LDO can power an external microprocessor, while the main output can be programmed to one of four fixed voltages. The power good indicator signals that the main output is within regulation. A second output can be enabled by the host. A storage capacitor (or battery) can also be charged to provide power when the input voltage source is unavailable. Extremely low quiescent current and high efficiency maximizes the harvested energy available for the application.

The LTC3109 is available in a small, thermally enhanced 20-lead (4mm × 4mm) QFN package and a 20-lead SSOP package.

Applications

  • Remote Sensor and Radio Power
  • HVAC Systems
  • Automatic Metering
  • Building Automation
  • Predictive Maintenance
  • Industrial Wireless Sensing
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Documentation View All Documentation
LTspice LTC3109 - Power Management Download 3.48 KB
Part Models 8
1ku List Price Starting From $4.72
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LTC3109

Documentation

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Data Sheet

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UPDATED 08/15/2013
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LTC3109: Auto-Polarity, Ultralow Voltage Step-Up Converter and Power Manager Data Sheet

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UPDATED 10/08/2013
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LTC3109: Auto-Polarity、超低電圧昇圧コンバータ＆パワーマネージャ データシート

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User Guide

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UPDATED 08/25/2010
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Reliability Data

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UPDATED 03/23/2018
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R551 Reliability Data redirect icon

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UPDATED 04/01/2011
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Harvest Energy from a Single Photovoltaic Cell redirect icon

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UPDATED 10/06/2014
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Frequently Asked Questions: Thermoelectric Energy Harvesting With the LTC3108 & LTC3109 redirect icon

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Documentation

Product Selector Card 2

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

Solutions Bulletin & Brochure 1

Energy Harvesting Now

Thought Leadership Page 1

Green Buildings Get a Boost: Wireless Sensor Nodes as a Key Application for Energy Harvesting

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2017-09-18

08:18

LTC3109 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
LTC3109EGN#PBF 20-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC3109EGN#TRPBF 20-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC3109EUF#PBF 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC3109EUF#TRPBF 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC3109IGN#PBF 20-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC3109IGN#TRPBF 20-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC3109IUF#PBF 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC3109IUF#TRPBF 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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Aug 10, 2022

- 22_0177

Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL

LTC3109EGN#PBF

PRODUCTION

LTC3109EGN#TRPBF

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LTC3109IGN#PBF

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LTC3109IGN#TRPBF

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PCN22_0177_Form

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Delta Qualification Matrix

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Jan 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC3109EUF#PBF

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LTC3109EUF#TRPBF

PRODUCTION

LTC3109IUF#PBF

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LTC3109IUF#TRPBF

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Detailed Change Description

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Aug 10, 2022

- 22_0177

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Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL

LTC3109EGN#PBF

PRODUCTION

LTC3109EGN#TRPBF

PRODUCTION

LTC3109IGN#PBF

PRODUCTION

LTC3109IGN#TRPBF

PRODUCTION

pdf

PCN22_0177_Form

external-icon

xls

Material_Report

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xlsm

Delta Qualification Matrix

Download
Jan 20, 2022

- 21_0269

arrow down

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC3109EUF#PBF

PRODUCTION

LTC3109EUF#TRPBF

PRODUCTION

LTC3109IUF#PBF

PRODUCTION

LTC3109IUF#TRPBF

PRODUCTION

pdf

PCN21_0269_Form

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xls

Material_Report

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pdf

Detailed Change Description

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pdf

Qualification Results Summary

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Software & Part Ecosystem

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Evaluation Kits 1

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LTC3109EUF Demo Board | Auto-polarity, Ultralow Voltage Step-Up Converter and Power Manager

Evaluation Kits1

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LTC3109EUF Demo Board | Auto-polarity, Ultralow Voltage Step-Up Converter and Power Manager

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.

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LTC3109 - Power Management Download

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