LTC3459
Info : RECOMMENDED FOR NEW DESIGNS
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LTC3459

10V Micropower Synchronous Boost Converter in ThinSOT

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 6
1ku List Price Starting From $2.63
Features
  • Small Solution Size
  • >85% Efficiency over Wide Load Range
  • Internal Synchronous Rectifier
  • VIN Range: 1.5V to 5.5V
  • 5V at 30mA from 3.3V Input
  • 3.3V at 20mA from 2 AA Cell Input
  • Programmable Output Voltages Up to 10V
  • Burst Mode Operation
  • Inrush Current Limiting
  • Output Disconnect in Shutdown
  • Ultralow Quiescent (10µA) and Shutdown (<1µA) Currents
  • Low Profile 2mm × 2mm DFN, 2mm × 3mm DFN or SOT-23 Package
Additional Details
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The LTC3459 is a low current, high efficiency synchronous boost converter intended for low power, size constrained portable applications. The LTC3459 can be powered from a single lithium ion battery, a 2- to 3-cell stack of Alkaline or Nickel batteries, or any low impedance voltage source between 1.5V and 5.5V. The output is programmable via an external divider between 2.5V and 10V. Although the part is primarily intended for boost applications, VOUT will maintain regulation below VIN (at reduced efficiency).

The LTC3459 offers Burst Mode operation with a fixed peak current, providing high conversion efficiency over a wide range of load currents. During start-up, inductor current is controlled preventing the inrush surge current found in many boost converters. In shutdown the output is disconnected from the input and quiescent current is reduced to <1µA.

The LTC3459 is offered in low profile 6-pin 2mm × 2mm DFN, 2mm × 3mm DFN or SOT-23 (ThinSOT) packages, allowing a tiny footprint for the total solution.

Applications

  • General Purpose Micropower Boost
  • Digital Cameras
  • PDAs
  • LCD Bias
  • Small OLED Displays
  • Supercap Charging
Part Models 6
1ku List Price Starting From $2.63

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC3459EDC#TRMPBF
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LTC3459EDC#TRPBF
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LTC3459EDCB#TRMPBF
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LTC3459EDCB#TRPBF
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LTC3459ES6#TRMPBF
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LTC3459ES6#TRPBF
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 3

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DC703A

LTC3459ES6 Demo Board | VIN = 1.8V to 5.5V, VOUT = 8V @ 2mA/20mA/40mA

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DC703A

LTC3459ES6 Demo Board | VIN = 1.8V to 5.5V, VOUT = 8V @ 2mA/20mA/40mA

LTC3459ES6 Demo Board | VIN = 1.8V to 5.5V, VOUT = 8V @ 2mA/20mA/40mA

Product Detail

Demonstration circuit 703 features the LTC3459 10V micropower synchronous boost converter. The circuit in DC703 is designed to generate an 8V output from a 1.8V to 5.5V input voltage range. The maximum output current is 40mA and is dependent on the input voltage.

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DC2042A

Energy Harvesting (EH) Multi-Source Demo Board

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DC2042A

Energy Harvesting (EH) Multi-Source Demo Board

Energy Harvesting (EH) Multi-Source Demo Board

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


 


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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

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

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!

Tools & Simulations

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.

Reference Designs

Reference Designs 1

Condition-Based Monitoring Signal Chain for an IEPE Piezoelectric Vibration Sensor

24-Bit Data Acquisition System for IEPE Sensors

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cn0540

24-Bit Data Acquisition System for IEPE Sensors

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Circuits from the lab

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24-Bit Data Acquisition System for IEPE Sensors

Features and Benefits

  • IEPE compatible data acquisition system
  • Piezo and MEMs sensors
  • 54 kHz analog input bandwidth
  • Arduino form factor compatible
View Detailed Reference Design external link

Design & Integration Tools

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