LTM4678

RECOMMENDED FOR NEW DESIGNS

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

Data Sheet (Rev. B) Product Selection Table
Part Models
3
1ku List Price
Starting From $55.89
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Part Details

  • 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
LTM4678
Dual 25A or Single 50A µModule Regulator with Digital Power System Management
LTM4678 Application Circuit LTM4678 Performance Graph LTM4678 Performance Graph LTM4678 Performance Graph LTM4678 Performance Graph LTM4678 Pin Configuration EDN HOT 100
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

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Software Resources

Device Drivers 1

Hardware Ecosystem

Parts Product Life Cycle Description
LTM4650-1
RECOMMENDED FOR NEW DESIGNS Dual 25A or Single 50A µModule Regulator with 0.8% DC and 3% Transient Accuracy
LTM4650
RECOMMENDED FOR NEW DESIGNS Dual 25A or Single 50A DC/DC μModule Regulator
LTM4677
RECOMMENDED FOR NEW DESIGNS Dual 18A or Single 36A μModule (Power Module) Regulator with Digital Power System Management
LTM4676A
RECOMMENDED FOR NEW DESIGNS Dual 13A or Single 26A μModule Regulator with Digital Power System Management
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTM4678
  • LTM4678A

LTpowerCAD 1

LTpowerPlay®

LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.

Open Tool
LTspice

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.

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

Evaluation Kits

eval board
schematic 1
DC2552A

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

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Product Details

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.

eval board
schematic 2
schematic 3
schematic 4
DC2570A

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

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Product Details

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.

eval board
schematic 5
DC2638A-A

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

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Product Details

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.

eval board
schematic 6
DC2638A-C

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

Buy Now View Details

Product Details

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.

eval board
schematic 7
DC2638A-D

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

Buy Now View Details

Product Details

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.

eval board
schematic 8
DC2638A-B

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

Buy Now View Details

Product Details

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.
DC2552A
LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management
DC2552A Image
DC2570A
LTM4678 Dual 25A or Single 50A µModule Regulator with Digital Power System Management,1× LTM4678, 50A
DC2570A-acl DC2570A-pg DC2570A-pg1
DC2638A-A
LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 2x LTM4678; 100A
DC2638A-A Evaluation Board
DC2638A-C
LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 4x LTM4678; 200A
DC2638A-C Evaluation Board
DC2638A-D
LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 5x LTM4678; 250A
DC2638A-D Evaluation Board
DC2638A-B
LTM4678 Demo Board | Dual 25A or Single 50A μModule Regulator with Digital Power System Management 3x LTM4678; 150A
DC2638A-B Evaluation Board

Reference Designs

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

Altera FPGA

View Detailed Reference Design

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.
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile) Circuits from the lab

Altera FPGA

View Detailed Reference Design

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

Latest Discussions

1 Years Ago
RE: DC2638A-A Not in LTpowerCAD
1 Years Ago
RE: LTM4678 : LTPOWERCAD model for LTM4678 Single rail with 50A.
View related discussion on EngineerZone®

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