LTM4606 - Ultralow EMI 28VIN, 6A DC/DC μModule (Power Module) Regulator


  • Complete Low EMI Switch Mode Power Supply
  • Wide Input Voltage Range: 4.5V to 28V
  • 6A DC Typical, 8A Peak Output Current
  • 0.6V to 5V Output Voltage Range
  • EN55022 Class B Certified
  • Output Voltage Tracking and Margining
  • PLL Frequency Synchronization
  • ±1.75% Total DC Error
  • Power Good Output
  • Current Foldback Protection (Disabled at Start-Up)
  • Parallel/Current Sharing
  • Current Mode Control
  • Up to 93% Efficiency at 5VIN, 3.3VOUT
  • Programmable Soft-Start
  • Output Overvoltage Protection
  • –55°C to 125°C Operating Temperature Range (LTM4606MP)
  • SnPb or RoHS Compliant Finish
  • 15mm × 15mm × 2.82mm LGA Package
    15mm × 15mm × 3.42mm BGA Package

Typical Application

LTM4606 Typical Application
LTM4606 Typical Application


The LTM®4606 is a complete EN55022 Class B certified noise high voltage 6A switching mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductor, and all support components. The on-board input filter and noise cancellation circuits achieve low noise operation, thus effectively reducing the electromagnetic interference (EMI). Operating over an input voltage range of 4.5V to 28V, the LTM4606 supports an output voltage range of 0.6V to 5V, set by a single resistor. This high efficiency design delivers 6A continuous current (8A peak). 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 device supports output voltage tracking and output voltage margining.

Furthermore, the μModule® regulator can be synchronized with an external clock for reducing undesirable frequency harmonics and allows PolyPhase® operation for high load currents.

The LTM4606 is offered in space saving 15mm × 15mm × 2.82mm LGA and 15mm × 15mm × 3.42mm BGA packages. The LTM4606 is available with SnPb (BGA) or RoHS compliant terminal finish.


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
LTM4606EV#PBF 15mm × 15mm × 2.82mm LGA LGA E 05-08-1766 Yes
LTM4606EY#PBF 15mm x 15mm x 3.42mm BGA BGA E 05-08-1943 Yes
LTM4606IV#PBF 15mm × 15mm × 2.82mm LGA LGA I 05-08-1766 Yes
LTM4606IY 15mm x 15mm x 3.42mm BGA BGA I 05-08-1943 No
LTM4606IY#PBF 15mm x 15mm x 3.42mm BGA BGA I 05-08-1943 Yes
LTM4606MPV#PBF 15mm × 15mm × 2.82mm LGA LGA MP 05-08-1766 Yes
LTM4606MPY 15mm x 15mm x 3.42mm BGA BGA MP 05-08-1943 No
LTM4606MPY#PBF 15mm x 15mm x 3.42mm BGA BGA MP 05-08-1943 Yes

LTM4606 Package Drawing
LTM4606 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
LTM4606EV#PBF 15mm × 15mm × 2.82mm LGA E $23.57 $16.50 Yes
LTM4606EY#PBF 15mm x 15mm x 3.42mm BGA E $25.00 $17.50 Yes
LTM4606IV#PBF 15mm × 15mm × 2.82mm LGA I $25.93 $18.15 Yes
LTM4606IY 15mm x 15mm x 3.42mm BGA I $42.56 $29.79 No
LTM4606IY#PBF 15mm x 15mm x 3.42mm BGA I $27.36 $19.15 Yes
LTM4606MPV#PBF 15mm × 15mm × 2.82mm LGA MP $53.00 $37.10 Yes
LTM4606MPY 15mm x 15mm x 3.42mm BGA MP $69.62 $48.74 No
LTM4606MPY#PBF 15mm x 15mm x 3.42mm BGA MP $54.43 $38.10 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
DC1295B LTM4606EV Demo Board | EN55022B Compliant, 4.5V ≤ VIN ≤28V, VOUT = 0.6V to 5V @ 6A $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
  • Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
  • Step 3: If LTspice does not automatically open after clicking the link above, 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

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

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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