LTC3105
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LTC3105

400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up

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LTspice LTC3105 - Power Management Download 1.72 KB LTspice LTC3105 Demo Circuit - 400mA Step-Up Converter with PV Source Temp Tracking (0.6-1V to 3.3V @ 10mA & 2.2V @ 6mA) Download 3.00KB
Part Models 4
1ku List Price Starting From $3.25
Features
  • Low Start-Up Voltage: 250mV
  • Maximum Power Point Control
  • Wide VIN Range: 225mV to 5V
  • Auxiliary 6mA LDO Regulator
  • Burst Mode® Operation: IQ = 24μA
  • Output Disconnect and Inrush Current Limiting
  • VIN > VOUT Operation
  • Antiringing Control
  • Soft Start
  • Automatic Power Adjust
  • Power Good Indicator
  • 10-Lead 3mm × 3mm × 0.75mm DFN and 12-Lead MSOP Packages
Additional Details
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The LTC3105 is a high efficiency step-up DC/DC converter that can operate from input voltages as low as 225mV. A 250mV start-up capability and integrated maximum power point controller (MPPC) enable operation directly from low voltage, high impedance alternative power sources such as photovoltaic cells, TEGs (thermoelectric generators) and fuel cells. A user programmable MPPC set point maximizes the energy that can be extracted from any power source. Burst Mode operation, with a proprietary self adjusting peak current, optimizes converter efficiency and output voltage ripple over all operating conditions.

The AUX powered 6mA LDO provides a regulated rail for external microcontrollers and sensors while the main output is charging. In shutdown, IQ is reduced to 10μA and integrated thermal shutdown offers protection from overtemperature faults. The LTC3105 is offered in 10-lead 3mm × 3mm × 0.75mm DFN and 12-lead MSOP packages.

Applications

  • Solar Powered Battery/Supercapacitor Chargers
  • Energy Harvesting
  • Remote Industrial Sensors
  • Low Power Wireless Transmitters
  • Cell Phone, MP3, PMP and GPS Accessory Chargers
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file View Data Sheet
Documentation View All Documentation
LTspice LTC3105 - Power Management Download 1.72 KB LTspice LTC3105 Demo Circuit - 400mA Step-Up Converter with PV Source Temp Tracking (0.6-1V to 3.3V @ 10mA & 2.2V @ 6mA) Download 3.00KB
Part Models 4
1ku List Price Starting From $3.25
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LTC3105

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Data Sheet

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UPDATED 11/10/2015
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LTC3105: 400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up Data Sheet

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UPDATED 05/19/2011
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LTC3105: 最大電力点制御と250mVでの起動を特長とする400mA 昇圧DC/DCコンバータ データシート

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User Guide

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UPDATED 01/05/2011
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DC1587A - Demo Manual redirect icon

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UPDATED 07/25/2013
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DC2080A - Demo Manual (Rev.A) redirect icon

959.00K

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UPDATED 07/25/2013
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DC2042A - Demo Manual redirect icon

1.00M

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Technical Articles

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UPDATED 10/18/2010
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Solar Energy Harvesting 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 02/03/2014
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Techniques to Maximize Solar Panel Power Output redirect icon

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UPDATED 02/03/2014
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ソーラー・パネルの電力出力を最大限まで高めるテクニック redirect icon

Reliability Data

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UPDATED 03/23/2018
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R415 Reliability Data redirect icon

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Design Note

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UPDATED 01/01/2011
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Design Note 491: Tiny 2-Cell Solar Panel Charges Batteries in Compact, Off-Grid Devices redirect icon

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UPDATED 01/01/2011
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设计要点 491：纤巧型双电池太阳能板给紧凑和离网型设备中的 电池充电 redirect icon

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UPDATED 01/01/2011
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Documentation

Technical Documents 9
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Data Sheet 1

LTC3105: 400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up Data Sheet

Reliability Data 1

R415 Reliability Data

User Guide 3

DC1587A - Demo Manual
DC2080A - Demo Manual (Rev.A)
DC2042A - Demo Manual

Design Note 1

Design Note 491: Tiny 2-Cell Solar Panel Charges Batteries in Compact, Off-Grid Devices

Technical Articles 3

Solar Energy Harvesting
Harvest Energy from a Single Photovoltaic Cell
Techniques to Maximize Solar Panel Power Output

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

10:50

LTspice: Adding Third-Party Models

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2017-09-18

08:29

Low Input Voltage and Maximum Power Point Control Simplifies Energy Harvesting

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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
LTC3105EDD#PBF 10-Lead DFN (3mm x 3mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC3105EDD#TRPBF 10-Lead DFN (3mm x 3mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC3105EMS#PBF 12-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC3105EMS#TRPBF 12-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Jun 5, 2024

- 24_0004

Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

LTC3105EMS#PBF

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Qualification Results Summary

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Delta Qualification Matrix

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Feb 4, 2020

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Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

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Jun 5, 2024

- 24_0004

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Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

LTC3105EMS#PBF

PRODUCTION

LTC3105EMS#TRPBF

PRODUCTION

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PCN24_0004_Form

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xls

Material_Report

Download

pdf

Qualification Results Summary

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Delta Qualification Matrix

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Feb 4, 2020

- 20_0129

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Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LTC3105EMS#PBF

PRODUCTION

LTC3105EMS#TRPBF

PRODUCTION

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PCN20_0129_Form

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Software & Part Ecosystem

Parts Product Life Cycle Description

Single-Supply Monitors1
LTC2935
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PRODUCTION

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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PDF

DC2042A - Demo Manual Download

1.00M

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PDF

DC2042A - Schematic Download

121.00K

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DC2042A - Design Files Download

1.00M

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DC1587A

LTC3105EDD | 250mV Start-Up, Step-Up DC/DC Converter with Maximum Power Point Control

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DC1587A

LTC3105EDD | 250mV Start-Up, Step-Up DC/DC Converter with Maximum Power Point Control

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DC1587A
LTC3105EDD | 250mV Start-Up, Step-Up DC/DC Converter with Maximum Power Point Control
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Product Detail

Demonstration circuit 1587A is a boost converter optimized for relatively high impedance, very low voltage input power sources. It allows a user to quickly evaluate the LTC3105 boost converter and LDO regulator. Capable of operating with an input voltage as low as 250mV and as high as 5V, the circuit features maximum power point control (MPPC). Jumpers on the circuit board allow the user to select several MPPC voltages, three boost output voltages and three LDO regulator output voltages. Also included are jumpers for shutdown and for selecting an external pull-up voltage for the power good status output. Terminals are provided for input and output connections, power good output and external power good supply input, shutdown input, and provisions for external MPPC resistor and MPPC diode input. This demonstration board is especially designed for low power solar cell applications.

Resources

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DC1587A - Schematic Download

48.00K

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DC1587A - Demo Manual Download

225.00K

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DC1587A - Design Files Download

752.00K

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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

ZIP

DC2080A - Design Files Download

1.00M

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PDF

DC2080A - Demo Manual (Rev.A) Download

959.00K

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PDF

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

DC1587A

LTC3105EDD | 250mV Start-Up, Step-Up DC/DC Converter with Maximum Power Point Control
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

LTC3105 - Power Management Download

1.72 K

spice tool Lt Spice

LTC3105 Demo Circuit - 400mA Step-Up Converter with PV Source Temp Tracking (0.6-1V to 3.3V @ 10mA & 2.2V @ 6mA) Download

3.00K

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