LTC3105

RECOMMENDED FOR NEW DESIGNS

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

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $3.25

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Part Details

Low Start-Up Voltage: 250mV
Maximum Power Point Control
Wide V_IN Range: 225mV to 5V
Auxiliary 6mA LDO Regulator
Burst Mode^® Operation: I_Q = 24μA
Output Disconnect and Inrush Current Limiting
V_IN > V_OUT Operation
Antiringing Control
Soft Start
Automatic Power Adjust
Power Good Indicator
10-Lead 3mm × 3mm × 0.75mm DFN and 12-Lead MSOP Packages

Part Models: 4
1ku List Price: Starting From $3.25

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
LTC3105EDD#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3105EDD#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3105EMS#PBF	12-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3105EMS#TRPBF	12-Lead MSOP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper
		PCN25_0017_Form Material_Report Qualification Results Summary
LTC3105EDD#PBF	PRODUCTION
LTC3105EDD#TRPBF	PRODUCTION
LTC3105EMS#PBF	PRODUCTION
LTC3105EMS#TRPBF	PRODUCTION
Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3)
		PCN24_0004_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC3105EMS#PBF	PRODUCTION
LTC3105EMS#TRPBF	PRODUCTION
Feb 4, 2020 - 20_0129 Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0129_Form Material_Report
LTC3105EMS#PBF	PRODUCTION
LTC3105EMS#TRPBF	PRODUCTION

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Single-Supply Monitors 1
LTC2935	PRODUCTION	Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3105

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

Energy Harvesting (EH) Multi-Source Demo Board

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Product Details

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

DC2042A - Demo Manual
7/25/2013

DC2042A - Schematic
7/25/2013

DC2042A - Design Files
7/25/2013

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

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Product Details

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

DC1587A - Schematic
5/3/2012

DC1587A - Demo Manual
1/5/2011

DC1587A - Design Files
1/5/2011

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

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Product Details

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.

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