LTM4643
Info : RECOMMENDED FOR NEW DESIGNS
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LTM4643

Ultrathin Quad μModule Regulator with Configurable 3A 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 $23.42
Features
  • Quad Output Step-Down µModule® Regulator with 3A per Output
  • Wide Input Voltage Range: 4V to 20V
    • 2.375V to 20V with External Bias
  • 0.6V to 3.3V Output Voltage
  • 3A DC Output Current Each Channel
  • ±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 × 1.82mm LGA and 9mm × 15mm × 2.42mm BGA Packages
Additional Details
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The LTM4643 is a quad DC/DC step-down µModule (power module) regulator with 3A per output. Outputs can be paralleled in an array for up to 12A capability. Included in the package are the switching controllers, power FETs, inductors and support components. Operating over an input voltage range of 4V to 20V or 2.375V to 20V with an external bias supply, the LTM4643 supports an output voltage range of 0.6V to 3.3V each set by a single external resistor. Its high efficiency design delivers 3A continuous output current per channel. Only bulk input and output capacitors are needed.

Fault protection features include overvoltage, overcurrent and overtemperature protection. The LTM4643 is offered in a 9mm ×15mm × 1.82mm LGA and 9mm × 15mm × 2.42mm BGA packages with SnPb (BGA) or RoHS compliant terminal finish.

Applications

  • FPGAs, GPUs and ASICs Applications
  • PCIe and Backside PCB Mounting
Part Models 8
1ku List Price Starting From $23.42

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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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Mar 10, 2021

- 21_0062

LTM4643 Notification of Qualification of New Mold Compound

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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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Filter by Model

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Reset Filters

Part Models

Product Lifecycle

PCN

Jul 21, 2021

- 21_0159

arrow down

Ink Mark to Laser Mark Conversion for µModule

LTM4643EV#PBF

PRODUCTION

LTM4643EY#PBF

PRODUCTION

LTM4643IV#PBF

PRODUCTION

LTM4643IY

PRODUCTION

LTM4643IY#PBF

PRODUCTION

LTM4643MPV#PBF

PRODUCTION

LTM4643MPY

PRODUCTION

LTM4643MPY#PBF

PRODUCTION

Mar 10, 2021

- 21_0062

arrow down

LTM4643 Notification of Qualification of New Mold Compound

LTM4643EV#PBF

PRODUCTION

LTM4643EY#PBF

PRODUCTION

LTM4643IV#PBF

PRODUCTION

LTM4643IY

PRODUCTION

LTM4643IY#PBF

PRODUCTION

LTM4643MPV#PBF

PRODUCTION

LTM4643MPY

PRODUCTION

LTM4643MPY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

arrow down

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

LTM4643EV#PBF

PRODUCTION

LTM4643EY#PBF

PRODUCTION

LTM4643IV#PBF

PRODUCTION

LTM4643IY

PRODUCTION

LTM4643IY#PBF

PRODUCTION

LTM4643MPV#PBF

PRODUCTION

LTM4643MPY

PRODUCTION

LTM4643MPY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

arrow down

Supplier Material Change for µModule

LTM4643EV#PBF

PRODUCTION

LTM4643EY#PBF

PRODUCTION

LTM4643IV#PBF

PRODUCTION

LTM4643IY

PRODUCTION

LTM4643IY#PBF

PRODUCTION

LTM4643MPV#PBF

PRODUCTION

LTM4643MPY

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC2453A

LTM4643 Demo Board | Quad Buck μModule Regulator with Configurable 3A Output Array

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DC2453A

LTM4643 Demo Board | Quad Buck μModule Regulator with Configurable 3A Output Array

LTM4643 Demo Board | Quad Buck μModule Regulator with Configurable 3A Output Array

Product Detail

Demonstration circuit 2453A features the LTM4643 μModule® regulator, a high performance high efficiency 4 output step-down regulator. The LTM4643EV has an operating input voltage range of 4V to 14V and is able to provide up to 3A out output current from each of its phases. Each output’s voltage is programmable from 0.6V to 5.5V but the demo board is configured to provide outputs of 3.3V, 2.5V, 1.5V and 1.2V. The LTM4643EV is a complete DC/DC point of load regulator in a thermally enhanced 15mm × 9mm × 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 1

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

Reference Designs1

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