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LTC3646-1 - 1A Synchronous Step-Down Converter

Download the LTC3646-1 datasheet PDF. This datasheet also covers the LTC3646 variant, as both devices belong to the same 1a synchronous step-down converter family and are provided as variant models within a single manufacturer datasheet.

Description

The LTC®3646 is a high efficiency, step-down DC/DC converter with internal high side and synchronous power FETs.

It draws only 140µA typical DC supply current in Burst Mode operation at no load while maintaining output voltage regulation.

Features

  • nn Wide Input Voltage Range: 4.0V to 40V nn 1A Guaranteed Output Current nn High Efficiency: Up to 95% nn Wide Output Voltage Range nn LTC3646: 2.0V to 30V nn LTC3646-1: 0.6V to 15V nn ±1% Accurate Reference Voltage nn Internal or External Compensation nn Switching Frequency Adjustable and Synchronizable: 200kHz to 3MHz nn Selectable High Efficiency Burst Mode® Operation or Forced Continuous Mode nn 14 Lead 3mm × 4mm DFN or Thermally Enhanced 16-Lead MSOP Packages.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LTC3646-Linear.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by Linear Technology (Analog Devices)

Part Number Description
LTC3646 1A Synchronous Step-Down Converter
LTC3643 2A Bidirectional Power Backup Supply
LTC3649 4A Synchronous Step-Down Regulator
LTC3600 Step-Down Regulator
LTC3603 Monolithic Synchronous Step-Down Regulator

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
FEATURES nn Wide Input Voltage Range: 4.0V to 40V nn 1A Guaranteed Output Current nn High Efficiency: Up to 95% nn Wide Output Voltage Range nn LTC3646: 2.0V to 30V nn LTC3646-1: 0.6V to 15V nn ±1% Accurate Reference Voltage nn Internal or External Compensation nn Switching Frequency Adjustable and Synchronizable: 200kHz to 3MHz nn Selectable High Efficiency Burst Mode® Operation or Forced Continuous Mode nn 14 Lead 3mm × 4mm DFN or Thermally Enhanced 16-Lead MSOP Packages APPLICATIONS nn Point of Load Power Supplies nn Intermediate Bus Power nn Automotive Applications LTC3646/LTC3646-1 40V, 1A Synchronous Step-Down Converter DESCRIPTION The LTC®3646 is a high efficiency, step-down DC/DC converter with internal high side and synchronous power FETs.
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