LTM4642

RECOMMENDED FOR NEW DESIGNS

20VIN, Dual 4A or Single 8A DC/DC μModule Regulator

Data Sheet Product Selection Table
Part Models
3
1ku List Price
Starting From $18.83
Viewing:

Part Details

  • Small Form Factor Dual 4A Power Supply
  • Wide Input Voltage Range: 4.5V to 20V (2.375V Min with CPWR Bias)
  • Dual 180° Out-of-Phase Outputs with 4A DC
  • Dual Outputs with 0.6V to 5.5V Range
  • Output Voltage Tracking
  • ±1.5% Maximum Total DC Output Voltage Error
  • Up to 95% Maximum Efficiency
  • Phase-Lockable Fixed Frequency 600kHz to 1.4MHz
  • Constant On-Time, Valley Current Mode Architecture
  • Selectable Burst Mode® Operation
  • Output Overvoltage and Overcurrent Protection
  • 9mm × 11.25mm × 4.92mm BGA Package
LTM4642
20VIN, Dual 4A or Single 8A DC/DC μModule Regulator
Dual 4A 1V and 1.2V DC/DC μModule Regulator Efficiency vs Load Current at 12V input Product Package 1
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

Learn More
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Hardware Ecosystem

Parts Product Life Cycle Description
Digital Power System Managers 2
LTC2975
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement
LTC2970
LTC2970-1
Dual I2C Power Supply Monitor and Margining Controller
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTM4642

LTpowerCAD 2

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
schematic 2
schematic 3
schematic 4
DC2194A

LTM4642 Demo Board | Dual Buck μModule Regulator, 2.5V ≤ VIN ≤ 20VIN, VOUT1 = 1.8V @ 4A, VOUT2 = 1.2V @ 4A

Buy Now View Details

Product Details

Demonstration circuit of DC2194A features the LTM4642IY, the wide input voltage, high efficiency and power density, dual 4A or single 8A DC/DC step-down μModule regulator. The step-down regulator operates from an input voltage range of 4.5V to 20V (or 2.5V min. with 5V external bias voltage at CPWR) and provides an adjustable output voltage range from 0.6V to 5V at 4A load current per channel. The part is capable of operating in dual phase single output, delivers up to 8A load current with interleaved two phases at 180 degrees. Differential output voltage sensing is available on Channel 1 for applications requiring more accurate output load regulation. A user-selectable mode input is provided to allow users to trade off ripple noise for light load efficiency: Discontinuous Mode (DCM) of operation delivers higher efficiency at light load while Continuous Conduction Mode (CCM) is preferred for noise sensitive applications.


 
DC2194A
LTM4642 Demo Board | Dual Buck μModule Regulator, 2.5V ≤ VIN ≤ 20VIN, VOUT1 = 1.8V @ 4A, VOUT2 = 1.2V @ 4A
DC2194A Demo Board DC2194A Demo Board DC2194A Demo Board DC2194A Demo Board

Reference Designs

Stratix 10 GX PCIE FPGA Development Kit
Stratix 10 GX PCIE FPGA Development Kit
Stratix 10 GX PCIE FPGA Development Kit Block Diagram
Stratix 10 GX PCIE FPGA Development Kit (Recommended Simplified Power Tree: 12Vin to required I/O voltages)
Stratix 10 GX PCIE FPGA Development Kit (Actual Power Tree representative of components used on board)
Intel Stratix 10 FPGA PCIe Development Kit Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with Intel PSG to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • The validated power solutions include uModules power products that address time and space constraints while delivering high efficiency, reliability, and low noise.
  • The actual power tree represents the best solution at time of design.
  • A recommended power tree has also been included to present the ideal solution at time of Stratix 10 GX PCIe development kit release. An updated alternate version of the power tree represents the latest solutions available from Analog Devices. For many applications, an intermediate rail is not ideal, so recommendations an alternate power tree that allow for direct power conversion from 12V input is provided below.
Intel Stratix 10 FPGA PCIe Development Kit
Stratix 10 GX PCIE FPGA Development Kit
Stratix 10 GX PCIE FPGA Development Kit Block Diagram
Stratix 10 GX PCIE FPGA Development Kit (Recommended Simplified Power Tree: 12Vin to required I/O voltages)
Stratix 10 GX PCIE FPGA Development Kit (Actual Power Tree representative of components used on board)

Latest Discussions

4 Years Ago
RE: LTM4642 Output Inductance/Resistance for power integrity simulation
View related discussion on EngineerZone®

Recently Viewed