Alternative Parts

  • LTM4636-1
    LTM4636-1

    40A μModule Regulator with Overvoltage/ Overtemperature Protection

Overview

Features and Benefits

  • Stacked Inductor Acts as Heat Sink
  • Wide Input Voltage Range: 4.7V to 15V
  • 0.6V to 3.3V Output Voltage Range
  • ±1.3% Total DC Output Voltage Error Over Line, Load and Temperature (–40°C to 125°C)
  • Differential Remote Sense Amplifier for Precision Regulation
  • Current Mode Control/Fast Transient Response
  • Frequency Synchronization
  • Parallel Current Sharing (Up to 240A)
  • Internal or External Compensation
  • 88% Efficiency (12VIN, 1VOUT) at 40A
  • Overcurrent Foldback Protection
  • 16mm × 16mm × 7.07mm BGA Package

Product Details

The LTM4636 is a 40A step-down μModule (power module) switching regulator with a stacked inductor as a heat sink for quicker heat dissipation and cooler operation in a small package. The exposed inductor permits direct contact with airflow from any direction. The LTM4636 can deliver 40W (12VIN, 1VOUT, 40A, 200LFM) with only 40°C rise over the ambient temperature. Full-power 40W is delivered, up to 83°C ambient and half-power 20W is supported at 110°C ambient.

The LTM4636 operates at 92%, 90% and 88% efficiency, delivering 15A, 30A and 40A, respectively, to a 1V load (12VIN). The μModule regulator is scalable such that four μModules in current sharing mode deliver 160W with only 40°C rise and 88% efficiency (12VIN, 1VOUT, 400LFM). The LTM4636 is offered in a 16mm × 16mm × 7.07mm BGA package.

Notes
LTM4636 Simpler circuits and fewer features
LTM4636-1 Extra internal circuitry for detecting overtemperature and input/output overvoltage conditions

Applications

  • Telecom Servers and Networking Equipment
  • Industrial Equipment and Medical Systems
Power by Linear

Product Categories

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

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.

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.

LTspice

Models for the following parts are available in LTspice:

LTM4636
LTM4636-1

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.

To open the project file for this circuit:

Step 1: Download and install LTpowerCAD on your computer.

Step 2: Click on the link(s) in the section below to download part-specific project files.

Step 3: If the project file doesn't run, right-click the link and select "Save Target As." Then start the LTpowerCAD tool and open the project file by selecing "Open Project" from the "File" menu.

LTPowerCAD

Design tools for the following parts are available in LTpowerCAD:

LTM4636
LTM4636 Parallel
LTM4636-1
LTM4636-1 Parallel
ltm4636-1Parallel
ltm4636Parallel

Product Recommendations

LTM4636 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Discussions

LTM4636 Discussions

04-19 Micromodules SIP Packaging.pdf
2 week(s) ago in Simplify Power Designs with Micromodule Products
LTC4367 problem
13 week(s) ago in Power By Linear
LTM4636 Didn't find what you were looking for? Ask the Analog community »

Sample & Buy

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Price Table Help

 

Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.