LTM4637
Info : RECOMMENDED FOR NEW DESIGNS
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LTM4637

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

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 5
1ku List Price Starting From $26.01
Features
  • 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
Additional Details
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The LTM4637 is a complete 20A output high efficiency switch mode step-down DC/DC μModule (power module) regulator. Included in the package are the switching controller, power FETs, inductor and compensation components. Operating over an input voltage range from 4.5V to 20V, the LTM4637 supports an output voltage range of 0.6V to 5.5V, set by a single external resistor. Only a few input and output capacitors are needed.

Current mode operation allows precision current sharing of up to four LTM4637 regulators to obtain up to 80A output. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, multiphase/current sharing, Burst Mode operation and output voltage tracking for supply rail sequencing. A diode-connected PNP transistor is available for use as an internal temperature monitor.

The LTM4637 is offered in 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm packages. The LTM4637 is available with SnPb (BGA) or RoHS compliant terminal finish. The LTM4637 is pin compatible with the LTM4627, a 15A DC/DC μModule regulator.

Applications

  • Telecom Servers and Networking Equipment
  • Industrial Equipment
  • Medical Systems
  • High Ambient Temperature Systems
Part Models 5
1ku List Price Starting From $26.01

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTM4637EV#PBF
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LTM4637EY#PBF
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LTM4637IV#PBF
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LTM4637IY
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LTM4637IY#PBF
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Product Lifecycle

PCN

Jul 28, 2021

- 20_0245

Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

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

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

Supplier Material Change for µModule

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Aug 12, 2019

- 19_0189

LTM4637 - Notification of Qualification of New Mold Compound

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Jul 3, 2023

- 23_0094

LTM4637 and LTM4639 - FET and SUBSTRATE (BGA Package ONLY)

LTM4637EY#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

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Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jul 28, 2021

- 20_0245

arrow down

Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Jul 21, 2021

- 21_0159

arrow down

Ink Mark to Laser Mark Conversion for µModule

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

arrow down

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

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

arrow down

Supplier Material Change for µModule

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Aug 12, 2019

- 19_0189

arrow down

LTM4637 - Notification of Qualification of New Mold Compound

LTM4637EV#PBF

PRODUCTION

LTM4637EY#PBF

PRODUCTION

LTM4637IV#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Jul 3, 2023

- 23_0094

arrow down

LTM4637 and LTM4639 - FET and SUBSTRATE (BGA Package ONLY)

LTM4637EY#PBF

PRODUCTION

LTM4637IY

PRODUCTION

LTM4637IY#PBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC1872A

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

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DC1872A

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

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

Product Detail

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.


 


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

Arria 10 (Rev E3- Linear Technology) Dev Kit

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altera-arria-10-fpga-development-kit

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
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