LTM4637

RECOMMENDED FOR NEW DESIGNS

20A DC/DC μModule (Power Module) Step-Down Regulator

Data Sheet (Rev. D) Product Selection Table
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Overview

  • Complete 20A Switch Mode Power Supply
  • 4.5V to 20V Input Voltage Range
  • 0.6V to 5.5V Output Voltage Range
  • ±1.5% Total DC Output Voltage Error (–40°C to 125°C)
  • Differential Remote Sense Amplifier for Precision Regulation for (VOUT ≤ 3.3V)
  • Current Mode Control/Fast Transient Response
  • Parallel Current Sharing (Up to 80A)
  • Frequency Synchronization
  • Selectable Pulse-Skipping or Burst Mode® Operation
  • Soft-Start/Voltage Tracking
  • Up to 88% Efficiency (12VIN, 1.8VOUT)
  • Overcurrent Foldback Protection
  • Output Overvoltage Protection
  • Internal Temperature Monitor
  • Overtemperature Protection
  • 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA Packages
  • SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish
LTM4637
20A DC/DC μModule (Power Module) Step-Down Regulator
12VIN, 1.2VOUT, 20A DC/DC μModule® Regulator 12VIN Efficiency vs Load Current Product Package 1 Product Package 2
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Documentation

Data Sheet 1

User Guide 1

Design Note 1

Technical Articles 2

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Power System Management (PSM) & Sequencers 1
LTC2977
RECOMMENDED FOR NEW DESIGNS 8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement
Switching Regulators & Controllers 2
LTM4628
PRODUCTION Dual 8A or Single 16A DC/DC μModule (Power Module) Regulator
LTM4627
PRODUCTION 15A DC/DC μModule (Power Module) Regulator
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTM4637

LTpowerCAD 1

Design tools for the following parts are available in LTpowerCAD:

  • LTM4637
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
schematic 5
DC1872A

LTM4637EV Demo Board | µModule Regulator, 4.5V ≤ VIN ≤ 20V, VOUT = 1V to 1.8V @ 20A

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Product Details

Demonstration circuit DC1872A features the LTM4637EV, a high efficiency, high density switch mode step-down power μModule® regulator. The input voltage range is from 4.5V to 20V. The output voltage is jumper programmable from 1.0V to 1.8V with a rated load current of 20A. Derating is necessary for certain VIN, VOUT, frequency and thermal conditions.


 
DC1872A
LTM4637EV Demo Board | µModule Regulator, 4.5V ≤ VIN ≤ 20V, VOUT = 1V to 1.8V @ 20A
DC1872A Demo Board DC1872A Demo Board DC1872A Demo Board DC1872A Demo Board DC1872A - Schematic

Reference Designs

Arria 10 (Rev E3- Linear Technology) Dev Kit
Arria 10 (Rev E3- Linear Technology) Dev Kit
Arria 10 FPGA Development Kit (Power Tree Representative of Actual Components Used on Board)
Simplied Power Tree that directly steps down 12V to required I/O voltage
Arria 10 (Rev E3- Linear Technology) Dev Kit Block Diagram
Altera Arria 10 FPGA Development Kit 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
Altera Arria 10 FPGA Development Kit
Arria 10 (Rev E3- Linear Technology) Dev Kit
Arria 10 FPGA Development Kit (Power Tree Representative of Actual Components Used on Board)
Simplied Power Tree that directly steps down 12V to required I/O voltage
Arria 10 (Rev E3- Linear Technology) Dev Kit Block Diagram

Latest Discussions

22 Weeks Ago
Will It Generate 5.5 out from 12V
1 Years Ago
Requesting thermal values
4 Years Ago
LTM4637 remote sense
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