LTM4644
LTM4644-1
Info : RECOMMENDED FOR NEW DESIGNS
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LTM4644
LTM4644-1

Quad DC/DC μModule (Power Module) Regulator with Configurable 4A Output Array

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 8
1ku List Price Starting From $26.90
Features
  • Quad Output Step-Down µModule® Regulator with 4A per Output
  • Wide Input Voltage Range: 4V to 14V
    • 2.375V to 14V with External Bias
  • 0.6V to 5.5V Output Voltage
  • 4A DC, 5A Peak Output Current Each Channel
  • Up to 5.5W Power Dissipation (TA = 60°C, 200 LFM, No Heat Sink)
  • ±1.5% Total Output Voltage Regulation
  • Current Mode Control, Fast Transient Response
  • Parallelable for Higher Output Current
  • Output Voltage Tracking
  • Internal Temperature Sensing Diode Output
  • External Frequency Synchronization
  • Overvoltage, Current and Temperature Protection
  • 9mm × 15mm × 5.01mm BGA Package
Additional Details
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The LTM4644/LTM4644-1 is a quad DC/DC step-down µModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capability. Included in the package are the switching controllers, powerFETs, inductors and support components. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the LTM4644/LTM4644-1 supports an output voltage range of 0.6V to 5.5V. Its high efficiency design delivers 4A continuous (5A peak) output current per channel. Only bulk input and output capacitors are needed. 

Applications

  • Multirail Point of Load Regulation
  • FPGAs, DSPs and ASICs Applications
Part Models 8
1ku List Price Starting From $26.90

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Documentation

Documentation

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

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Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

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Feb 28, 2020

- 20_0123

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

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Feb 5, 2020

- 20_0127

Supplier Material Change for µModule

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Sep 11, 2019

- 19_0196

Notification of Additional Assembly Location, ASE Korea for LTM4644

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Jul 23, 2019

- 19_0174

Notification of qualification of a new mold compound for the LTM4644 µModule Regulator  

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Jul 21, 2021

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Ink Mark to Laser Mark Conversion for µModule

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Feb 28, 2020

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

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Feb 5, 2020

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Supplier Material Change for µModule

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Sep 11, 2019

- 19_0196

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Notification of Additional Assembly Location, ASE Korea for LTM4644

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Jul 23, 2019

- 19_0174

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Notification of qualification of a new mold compound for the LTM4644 µModule Regulator  

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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DC2428A

LTC2975 Demo Board Set | LTM4644-1 Quad 4A Power Supply Management (includes DC2382A + DC2363A) [requires DC1613]

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DC2428A

LTC2975 Demo Board Set | LTM4644-1 Quad 4A Power Supply Management (includes DC2382A + DC2363A) [requires DC1613]

LTC2975 Demo Board Set | LTM4644-1 Quad 4A Power Supply Management (includes DC2382A + DC2363A) [requires DC1613]

Product Detail

The DC2428A is a two-board demonstration system for the LTC2975 Power System Manager and LTM4644-1 quad 4A μModule regulator. The DC2382A contains all the circuitry needed to use the LTC2975 in a power system and control four power supplies. The DC2363A contains four power supplies (LTM4644-1) that the LTC2975 configures and controls. The DC2363A and DC2382A demo boards together provide a sophisticated 4-channel digitally programmable power supply system.

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DC1900A

LTM4644 Demo Board | Quad Buck µModule Regulator, 4V ≤ VIN ≤ 14V, VOUT1 - VOUT4 = 3.3V/2.5V/1.5V/1.2V @ 4A Each

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DC1900A

LTM4644 Demo Board | Quad Buck µModule Regulator, 4V ≤ VIN ≤ 14V, VOUT1 - VOUT4 = 3.3V/2.5V/1.5V/1.2V @ 4A Each

LTM4644 Demo Board | Quad Buck µModule Regulator, 4V ≤ VIN ≤ 14V, VOUT1 - VOUT4 = 3.3V/2.5V/1.5V/1.2V @ 4A Each

Product Detail

Demonstration circuit 1900A features the LTM4644EY μModule® regulator, a high-performance high-efficiency quad output step-down regulator. The LTM4644EY has an operating input voltage range of 4V to 14V and is able to provide up to 4A of output current from each of its phases. Each output’s voltage is programmable from 0.6V to 5.5V. The LTM4644EY is a DC/DC point of load regulator in a 9mm × 15mm × 5.01mm BGA package requiring only a few input and output capacitors.

Tools & Simulations

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

Reference Designs 8

Ultrascale+ 910

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htg-910

Circuits from the lab

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Features and Benefits

The HTG-910 is low profile network card that provides access to eight lanes of PCI Express. It is populated with the Xilinx Zynq Virtex Ultrascale VU5P, VU9P, VU13P or Ultrascale VU190 FPGA. Analog Devices power solution on this platform is fully validated to meet the requirements of Xilinx Zynq Virtex Ultrascale FPGAs to ensure a robust power delivery solution.

DC/DC μModule regulators are used on the HTG-910 to power Xilinx FPGA and/or SoC rails as well as other system rails. These regulators are highly integrated solutions with built in controller, power FETs, inductors, and capacitors that simplify layout and provide robust power delivery performance.

We provide supporting documentation including power schematics, layout, LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly.

View Detailed Reference Design external link
Xilinx Zynq Networking Platform

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xilinx-zynq-networking-platform

xilinx-zynq-networking-platform

Circuits from the lab

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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
View Detailed Reference Design external link
Zynq UltraScale Board 922

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htg-z922

Circuits from the lab

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Features and Benefits

The HTG-Z922 provides access to large FPGA gate densities, wide range of I/O and expandable DDR4 memory for variety of different programmable applications. It is populated with the Xilinx Zynq Ultrascale+ ZU17-2 or ZU19-2 FPGA. Analog Devices power solution on this platform is fully validated to meet the requirements of Xilinx Zynq Ultrascale+ FPGAs to ensure a robust power delivery solution.

DC/DC μModule regulators are used on the HTG-Z922 to power Xilinx FPGA and/or SoC rails as well as other system rails. These regulators are highly integrated solutions with built in controller, power FETs, inductors, and capacitors that simplify layout and provide robust power delivery performance.

We provide supporting documentation including power schematics, layout, LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly.

View Detailed Reference Design external link
LaywerScape Q or IQ - LS1043RDB

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npx-freescale-qoriq-ls1043a-rdb

npx-freescale-qoriq-ls1043a-rdb

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link
Kintex UltraScale Board

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xilinx-kintex-ultrascale-pci-express-platform

xilinx-kintex-ultrascale-pci-express-platform

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link
HTG-K816 Dev Kit

zoomopens a dialog

xilinx-kintex-ultrascale-half-size-pci-express-platform-htg-k816

xilinx-kintex-ultrascale-half-size-pci-express-platform-htg-k816

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link
HTG-9100 900 Gb Optical Networking Platform

zoomopens a dialog

xilinx-virtex-ultrascale-multi-100-gig-optical-networking-platform

xilinx-virtex-ultrascale-multi-100-gig-optical-networking-platform

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link
Virtex UltraScale Development Platform

zoomopens a dialog

xilinx-virtex-ultrascale-development-platform

xilinx-virtex-ultrascale-development-platform

Circuits from the lab

tooltip Info:Circuits from the lab

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
View Detailed Reference Design external link

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