LTM4613 - EN55022B Compliant 36VIN, 15VOUT, 8A, DC/DC μModule (Power Module) Regulator


  • Complete Low EMI Switch Mode Power Supply
  • EN55022 Class B Compliant
  • Wide Input Voltage Range: 5V to 36V
  • 8A Output Current
  • 3.3V to 15V Output Voltage Range
  • Low Input and Output Referred Noise
  • Output Voltage Tracking and Margining
  • PLL Frequency Synchronization
  • 2% Maximum Total DC Error
  • Power Good Tracks with Margining
  • Current Foldback Protection
  • Parallel/Current Sharing
  • Ultrafast Transient Response
  • Current Mode Control
  • Programmable Soft-Start
  • Output Overvoltage Protection
  • –55°C to 125°C Operating Temperature Range (LTM4613MPV, LTM4613MPY)
  • Small Surface Mount Footprint, Low Profile (15mm × 15mm × 4.32mm) LGA Package

Typical Application

LTM4613 Typical Application
LTM4613 Typical Application


The LTM®4613 is a complete, ultralow noise, 8A switch mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 5V to 36V, the LTM4613 supports an output voltage range of 3.3V to 15V, set by a single external resistor. Only bulk input and output capacitors are needed to finish the design.

High switching frequency and an adaptive on-time current mode architecture enables a very fast transient response to line and load changes without sacrificing stability.

The onboard input filter and noise cancellation circuits achieve low noise coupling, thus effectively reducing the electromagnetic interference (EMI)—see Figure 7. Furthermore, the DC/DC μModule® regulator can be synchronized with an external clock to reduce undesirable frequency harmonics and allow PolyPhase® operation for high load currents.

The LTM4613 is offered in a space saving and thermally enhanced 15mm × 15mm × 4.32mm LGA package, which enables utilization of unused space on the bottom of PC boards for high density point-of-load regulation. The LTM4613 is Pb-free and RoHS compliant.


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTM4613EV#PBF 15mm x 15mm x 4.32mm LGA LGA E 05-08-1884 Yes
LTM4613EY#PBF 15mm x 15mm x 4.92mm BGA BGA E 05-08-1992 Yes
LTM4613IV#PBF 15mm x 15mm x 4.32mm LGA LGA I 05-08-1884 Yes
LTM4613IY 15mm x 15mm x 4.92mm BGA BGA I 05-08-1992 No
LTM4613IY#PBF 15mm x 15mm x 4.92mm BGA BGA I 05-08-1992 Yes
LTM4613MPV#PBF 15mm x 15mm x 4.32mm LGA LGA MP 05-08-1884 Yes

LTM4613 Package Drawing
LTM4613 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LTM4613EV#PBF 15mm x 15mm x 4.32mm LGA E $34.86 $24.40 Yes
LTM4613EY#PBF 15mm x 15mm x 4.92mm BGA E $36.40 $25.48 Yes
LTM4613IV#PBF 15mm x 15mm x 4.32mm LGA I $38.36 $26.85 Yes
LTM4613IY 15mm x 15mm x 4.92mm BGA I $55.10 $38.57 No
LTM4613IY#PBF 15mm x 15mm x 4.92mm BGA I $39.90 $27.93 Yes
LTM4613MPV#PBF 15mm x 15mm x 4.32mm LGA MP $70.90 $49.63 Yes
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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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1743A LTM4613EV Demo Board: Ultralow EMI, 36V, 8A Step-down uModule Regulator $65.00
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Click here to view our complete list of demo boards


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Design Tools


LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

  • Step 1: If you have not installed LTspice on this computer, download and install LTspice
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Models for the following parts are available in LTspice:


The LTpowerCAD design tool is a complete power supply design tool program that can significantly ease the tasks of power supply design. It guides users to a solution, selects power stage components, provides detailed power efficiency, shows quick loop bode plot stability and load transient analysis, and can export a final design to LTspice for simulation. Click here to download LTpowerCAD

Design tools for the following parts are available in LTpowerCAD:

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