LTC3103
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LTC3103

1.8μA Quiescent Current, 15V, 300mA Synchronous Step-Down DC/DC Converter

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LTspice LTC3103 Demo Circuit - Solar-Powered Buck Supply with Li Battery Backup (3.2-15V to 2.2V @ 300mA) Download 3.00KB LTspice LTC3103 - Step-Down (Buck) Regulators Download 1.82 KB
Part Models 8
1ku List Price Starting From $2.95
Features
  • Ultralow Quiescent Current: 1.8μA
  • Synchronous Rectification: Efficiency Up to 95%
  • Wide VIN Range: 2.5V to 15V
  • Wide VOUT Range: 0.6V to 13.8V
  • 300mA Output Current
  • User-Selectable Automatic Burst Mode® or Forced Continuous Operation
  • Accurate and Programmable RUN Pin Threshold
  • 1.2MHz Fixed Frequency PWM
  • Internal Compensation
  • Power Good Status Output for VOUT
  • Available in Thermally Enhanced 3mm × 3mm × 0.75mm, 10-Pin DFN and 10-Pin MSOP Packages
Additional Details
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The LTC3103 is a high efficiency, monolithic synchronous step-down converter using a current mode architecture capable of supplying 300mA of output current.

The LTC3103 offers two operational modes: automatic Burst Mode operation and forced continuous mode allowing the user the ability to optimize output voltage ripple, noise and light load efficiency. With Burst Mode operation enabled, the typical DC input supply current at no load drops to 1.8μA maximizing the efficiency for light loads. Selection of forced continuous mode provides very low noise constant frequency, 1.2MHz operation.

Additionally, the LTC3103 includes an accurate RUN comparator, thermal overload protection, a power good output and an integrated soft-start feature to guarantee that the power system start-up is well controlled.

Applications

  • Remote Sensor Networks
  • Distributed Power Systems
  • Multicell Battery or SuperCap Regulator
  • Energy Harvesters
  • Portable Instruments
  • Low Power Wireless Systems
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file View Data Sheet (Rev.B)
Documentation View All Documentation
LTspice LTC3103 Demo Circuit - Solar-Powered Buck Supply with Li Battery Backup (3.2-15V to 2.2V @ 300mA) Download 3.00KB LTspice LTC3103 - Step-Down (Buck) Regulators Download 1.82 KB
Part Models 8
1ku List Price Starting From $2.95
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LTC3103

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UPDATED 07/20/2016
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LTC3103: 1.8μA Quiescent Current, 15V, 300mA Synchronous Step-Down DC/DC Converter Data Sheet (Rev.B)

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UPDATED 12/27/2011
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LTC3103: 静止電流1.8μAの15V、300mA同期整流式降圧DC/DCコンバータ データシート

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User Guide

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UPDATED 01/25/2012
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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.

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Jul 31, 2020

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Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

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Jun 5, 2024

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

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Feb 4, 2020

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Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

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Jul 31, 2020

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Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3103EDD#PBF

PRODUCTION

LTC3103EDD#TRPBF

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LTC3103EMSE#PBF

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LTC3103EMSE#TRPBF

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LTC3103IDD#PBF

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LTC3103IDD#TRPBF

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LTC3103IMSE#PBF

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PCN20_0245_Form

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Material_Report

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Delta Qualification Matrix

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pdf

Other

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Qualification Results Summary

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Jun 5, 2024

- 24_0004

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

LTC3103EMSE#PBF

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LTC3103EMSE#TRPBF

PRODUCTION

LTC3103IMSE#PBF

PRODUCTION

LTC3103IMSE#TRPBF

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pdf

PCN24_0004_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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xlsm

Delta Qualification Matrix

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Feb 4, 2020

- 20_0130

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Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LTC3103EMSE#PBF

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LTC3103EMSE#TRPBF

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LTC3103IMSE#PBF

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2.6μA Quiescent Current, 15V, 300mA Synchronous Step-Down DC/DC Converter and 10mA LDO

Evaluation Kits 1

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DC1883A

LTC3103EDD Demo Board I 2.5 ≤ VIN ≤ 15V, VOUT = 1.8V @ 300mA

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DC1883A

LTC3103EDD Demo Board I 2.5 ≤ VIN ≤ 15V, VOUT = 1.8V @ 300mA

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DC1883A
LTC3103EDD Demo Board I 2.5 ≤ VIN ≤ 15V, VOUT = 1.8V @ 300mA
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Product Detail

Demonstration Circuit 1883A features the LTC3103, a high efficiency, monolithic synchronous step-down converter using a current mode architecture capable of supplying 300mA of output current. The IC operates with a fixed frequency oscillator at 1.2MHz. The LTC3103 has two user selectable (JP2) operating modes: Burst Mode® operation and forced continuous operation (fixed frequency PWM). The IC has internal compensation and an accurate programmable RUN pin.

The LTC3103 operates with a 2.5V to 15V input voltage range. The demo board has been designed with a main output set to 1.8V.

Resources

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DC1883A - Design Files Download

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DC1883A - Demo Manual Download

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DC1883A - Schematic Download

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Evaluation Kits1

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DC1883A

LTC3103EDD Demo Board I 2.5 ≤ VIN ≤ 15V, VOUT = 1.8V @ 300mA

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

LTC3103 Demo Circuit - Solar-Powered Buck Supply with Li Battery Backup (3.2-15V to 2.2V @ 300mA) Download

3.00K

spice tool Lt Spice

LTC3103 - Step-Down (Buck) Regulators Download

1.82 K

Reference Designs 1

DK-DEV-5CEA7N Dev Kit

Altera Cyclone V E Development Kit

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Altera Cyclone V E Development Kit

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Altera Cyclone V E Development Kit

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
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DK-DEV-5CEA7N Dev Kit

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