LTM4643

RECOMMENDED FOR NEW DESIGNS

Ultrathin Quad μModule Regulator with Configurable 3A Output Array

Data Sheet (Rev. D) Product Selection Table
Part Models
8
1ku List Price
Starting From $23.42
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Part Details

  • 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
LTM4643
Ultrathin Quad μModule Regulator with Configurable 3A Output Array
LTM4643 Application Circuit LTM4643 Pin Configuration LTM4643 Performance Graph
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Digital Power System Managers 1
LTC2975
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement
Digital Sequencers 1
LTC2937
RECOMMENDED FOR NEW DESIGNS Programmable Six Channel Sequencer and Voltage Supervisor with EEPROM
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTM4643

LTpowerCAD 1

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
DC2453A

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

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Product Details

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.
DC2453A
LTM4643 Demo Board | Quad Buck μModule Regulator with Configurable 3A Output Array
DC2453A - Demo Board Image

Reference Designs

Ultrascale+ 910
Ultrascale+ 910
HTG-910 BD Block Diagram
HTG-910 Power Tree Picture
HTG-910: Xilinx Virtex UltraScale+™ Low-Profile PCI Express Development Platform Circuits from the lab

View Detailed Reference Design

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.

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.
agilex7 alternative umodule
agilex7 alternative umodule
Intel Agilex 7 FPGA F-series Development Kit (Alternative µModule) 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.
HTG-910: Xilinx Virtex UltraScale+™ Low-Profile PCI Express Development Platform
Ultrascale+ 910
HTG-910 BD Block Diagram
HTG-910 Power Tree Picture
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 Development Kit (Alternative µModule)
Altera FPGA
agilex7 alternative umodule

Latest Discussions

2 Years Ago
RE: Power Loss Multiplicative Factors in LTM4643
4 Years Ago
Problems with LTM8049 power good pins
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