LTM4678
Info : RECOMMENDED FOR NEW DESIGNS
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LTM4678

Dual 25A or Single 50A µModule Regulator with Digital Power System Management

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Models 3
1ku List Price Starting From $55.89
Features
  • Dual Digitally Adjustable Analog Loops with Digital Interface for Control and Monitoring
  • Wide Input Voltage Range: 4.5V to 16V
  • Output Voltage Range: 0.5V to 3.4V
  • ±0.5% Maximum DC Output Error Over Temperature
  • ±3.5% Current Readback Accuracy, –20°C to 125°C
  • Sub-Milliohm DCR Current Sensing
  • Integrated Input Current Sense Amplifier
  • 400kHz PMBus-Compliant I2C Serial Interface
  • Supports Telemetry Polling Rates up to 125Hz
  • Integrated 16-Bit ∆Σ ADC
  • Constant Frequency Current Mode Control
  • Parallel and Current Share Up to 250A
  • 16mm × 16mm × 5.86mm CoP-BGA Package
    Readable Data
    • Input and Output Voltages, Currents, and Temperatures
    • Running Peak Values, Uptime, Faults and Warnings
    • Onboard EEPROM Fault Log Record

    Writable Data and Configurable Parameters
    • Output Voltage, Voltage Sequencing and Margining
    • Digital Soft-Start/Stop Ramp, Program Analog Loop
    • OV/UV/OT, UVLO, Frequency and Phasing
Additional Details
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The LTM4678 is a dual 25A or single 50A step-down µModule® (power module) DC/DC regulator featuring remote configurability and telemetry-monitoring of power management parameters over PMBus—an open standard I2C-based digital interface protocol . The LTM4678 is comprised of digitally programmable analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors and supporting components.

The LTM4678’s 2-wire serial interface allows outputs to be margined, tuned and ramped up and down at programmable slew rates with sequencing delay times. True input current sense, output currents and voltages, output power, temperatures, uptime and peak values are readable. Custom configuration of the EEPROM contents is not required. At start-up, output voltages, switching frequency, and channel phase angle assignments can be set by pin-strapping resistors. The LTpowerPlay® GUI and DC1613 USB-to-PMBus converter and demo kits are available.

The LTM4678 is offered in a 16mm × 16mm × 5.86mm CoP-BGA package available with SnPb or RoHS compliant terminal finish.

APPLICATIONS

  • System Optimization, Characterization and Data Mining in Prototype, Production and Field Environments
Part Models 3
1ku List Price Starting From $55.89

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Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Sep 13, 2022

- 22_0193

Laser Top Mark Conversion for uModule COP and TMSV_COP Packages

LTM4678EY#PBF

PRODUCTION

LTM4678IY

PRODUCTION

LTM4678IY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM4678EY#PBF

PRODUCTION

LTM4678IY

PRODUCTION

LTM4678IY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

Supplier Material Change for µModule

LTM4678EY#PBF

PRODUCTION

LTM4678IY

PRODUCTION

LTM4678IY#PBF

PRODUCTION

Jul 15, 2019

- 19_0144

Notification of qualification of a new mold compound for the LTM4678 µModule Regulator

LTM4678EY#PBF

PRODUCTION

LTM4678IY

PRODUCTION

LTM4678IY#PBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Sep 13, 2022

- 22_0193

arrow down

Laser Top Mark Conversion for uModule COP and TMSV_COP Packages

LTM4678EY#PBF

PRODUCTION

LTM4678IY

PRODUCTION

LTM4678IY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

arrow down

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM4678EY#PBF

PRODUCTION

LTM4678IY

PRODUCTION

LTM4678IY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

arrow down

Supplier Material Change for µModule

LTM4678EY#PBF

PRODUCTION

LTM4678IY

PRODUCTION

LTM4678IY#PBF

PRODUCTION

Jul 15, 2019

- 19_0144

arrow down

Notification of qualification of a new mold compound for the LTM4678 µModule Regulator

LTM4678EY#PBF

PRODUCTION

LTM4678IY

PRODUCTION

LTM4678IY#PBF

PRODUCTION

Software & Part Ecosystem

Evaluation Kits 6

reference details image

DC2552A

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management

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DC2552A

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management

Product Detail

Demonstration circuit 2552A is a dual-output, high efficiency, high density, µModule regulator with 4.5V to 16V input range. Each output can supply 25A maximum load current. The demo board has a LTM4678 µModule regulator, which is a dual 25A or single 50A step-down regulator with digital power system management. Please see LTM4678 data sheet for more detailed information.

DC2552A powers up to default settings and produce power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use Analog Devices’ I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on the fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

reference details image

DC2570A

LTM4678 Dual 25A or Single 50A µModule Regulator with Digital Power System Management,1× LTM4678, 50A

zoom

DC2570A

LTM4678 Dual 25A or Single 50A µModule Regulator with Digital Power System Management,1× LTM4678, 50A

LTM4678 Dual 25A or Single 50A µModule Regulator with Digital Power System Management,1× LTM4678, 50A

Product Detail

Demonstration circuit 2570A is a dual output, high efficiency, high density, µModule® regulator with 4.5V to 16V input range. The output voltage is adjustable from 0.5V to 33V and it can supply 50A maximum load current. The demo board has a LTM4678 µModule regulator, which is a dual 25A or single 50A step-down regulator with digital power system management. Please see LTM4678 data sheet for more detailed information.

DC2570A powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay onto your PC and use Analog Devices’ I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

reference details image

DC2638A-A

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 2x LTM4678; 100A

zoom

DC2638A-A

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 2x LTM4678; 100A

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 2x LTM4678; 100A

Product Detail

Demonstration circuit 2638A-A is a high efficiency, high density, μModule regulator with 4.5V to 16V input range. The output voltage is adjustable from 0.5V to 3.3V, and it can supply 100A maximum load current. The demo board has two LTM4678 μModule® regulators, and the LTM4678 is a dual 25A or single 50A step-down regulator with PMBus power system management. Please see LTM4678 data sheet for more detailed information.

DC2638A-A powers up to default settings and produce power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

GUI Download: The software can be downloaded from: LTpowerPlay.

For more details and instructions of LTpowerPlay, please refer to LTpowerPlay GUI for LTM4678 Quick Start Guide.

reference details image

DC2638A-C

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 4x LTM4678; 200A

zoom

DC2638A-C

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 4x LTM4678; 200A

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 4x LTM4678; 200A

Product Detail

Demonstration circuit 2638A-C is a high efficiency, high density, μModule regulator with 4.5V to 16V input range. The output voltage is adjustable from 0.5V to 3.3V, and it can supply 200A maximum load current. The demo board has four LTM4678 μModule® regulators, and the LTM4678 is a dual 25A or single 50A step-down regulator with PMBus power system management. Please see LTM4678 data sheet for more detailed information.

DC2638A-C powers up to default settings and produce power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

GUI Download: The software can be downloaded from: LTpowerPlay.

For more details and instructions of LTpowerPlay, please refer to LTpowerPlay GUI for LTM4678 Quick Start Guide.

reference details image

DC2638A-D

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 5x LTM4678; 250A

zoom

DC2638A-D

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 5x LTM4678; 250A

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 5x LTM4678; 250A

Product Detail

Demonstration circuit 2638A-D is a high efficiency, high density, μModule regulator with 4.5V to 16V input range. The output voltage is adjustable from 0.5V to 3.3V, and it can supply 250A maximum load current. The demo board has five LTM4678 μModule® regulators, and the LTM4678 is a dual 25A or single 50A step-down regulator with PMBus power system management. Please see LTM4678 data sheet for more detailed information.

DC2638A-D powers up to default settings and produce power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

GUI Download: The software can be downloaded from: LTpowerPlay.

For more details and instructions of LTpowerPlay, please refer to LTpowerPlay GUI for LTM4678 Quick Start Guide.

reference details image

DC2638A-B

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 3x LTM4678; 150A

zoom

DC2638A-B

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 3x LTM4678; 150A

LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 3x LTM4678; 150A

Product Detail

Demonstration circuit 2638A-B is a high efficiency, high density, μModule regulator with 4.5V to 16V input range. The output voltage is adjustable from 0.5V to 3.3V, and it can supply 150A maximum load current. The demo board has three LTM4678 µModule® regulators, and the LTM4678 is a dual 25A or single 50A step-down regulator with PMBus power system management. Please see LTM4678 data sheet for more detailed information.

DC2638A-B powers up to default settings and produce power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

GUI Download: The software can be downloaded from: LTpowerPlay.

For more details and instructions of LTpowerPlay, please refer to LTpowerPlay GUI for LTM4678 Quick Start Guide.

Tools & Simulations 2

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.

Reference Designs 2

Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) Power Tree

Altera FPGA

zoomopens a dialog

Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile)

Altera FPGA

Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile)

Circuits from the lab

tooltip Info:Circuits from the lab
Altera FPGA

Features and Benefits

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • 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.
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
  • For a complete list power designs and use cases, please contact your local FAE.
View Detailed Reference Design external link
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)

Altera FPGA

zoomopens a dialog

Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)

Altera FPGA

Altera FPGA

Features and Benefits

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • 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.
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
  • For a complete list power designs and use cases, please contact your local FAE.
View Detailed Reference Design external link

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