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LTM4612 - EN55022B Compliant 36VIN, 15VOUT, 5A, DC/DC μModule (Power Module) Regulator

Features

  • Complete Low EMI Switch Mode Power Supply
  • EN55022 Class B Compliant
  • Wide Input Voltage Range: 5V to 36V
  • 3.3V to 15V Output Voltage Range
  • 5A DC, 7A Peak Output Current
  • Low Input and Output Referred Noise
  • Output Voltage Tracking and Margining
  • Power Good Tracks with Margining
  • PLL Frequency Synchronization
  • ±1.5% Set Point Accuracy
  • Current Foldback Protection (Disabled at Start-Up)
  • Parallel/Current Sharing
  • Ultrafast Transient Response
  • Current Mode Control
  • Programmable Soft-Start
  • Output Overvoltage Protection –55°C to 125°C Operating Temperature Range
  • (LTM4612MPV)
  • Small Surface Mount Footprint, Low Profile (15mm × 15mm × 2.8mm) LGA Package

Typical Application

LTM4612 Typical Application
LTM4612 Typical Application

Description

The LTM®4612 is a EN55022 Class B certified high voltage input and output, 5A switching 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 LTM4612 supports an output voltage range of 3.3V to 15V, set by a single 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 Figures 4 and 8. 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 LTM4612 is offered in a space saving and thermally enhanced 15mm × 15mm × 2.8mm LGA package, which enables utilization of unused space on the bottom of PC boards for high density point-of-load regulation. The LTM4612 is Pb-free and RoHS compliant.

Packaging

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
Drawing		 RoHS
LTM4612EV#PBF 15mm × 15mm × 2.82mm LGA LGA E 05-08-1766 Yes
LTM4612IV#PBF 15mm × 15mm × 2.82mm LGA LGA I 05-08-1766 Yes
LTM4612MPV#PBF 15mm × 15mm × 2.82mm LGA LGA MP 05-08-1766 Yes


LTM4612 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
(1-99)		 Price
(1k)*		 RoHS
LTM4612EV#PBF 15mm × 15mm × 2.82mm LGA E $28.42 $19.89 Yes
LTM4612IV#PBF 15mm × 15mm × 2.82mm LGA I $31.26 $21.88 Yes
LTM4612MPV#PBF 15mm × 15mm × 2.82mm LGA MP $57.79 $40.45 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
DC1297B LTM4612EV Demo Board | EN55022B Compliant, 5V ≤ VIN ≤ 36V, VOUT = 3.3V or 5V @ 5A, or VOUT = 12V @ 3A $65.00
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Click here to view our complete list of demo boards

Applications

  • Telecom and Networking Equipment
  • Industrial and Avionic Equipment
  • RF Systems

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Design Tools

LTspice

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:

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

Models for the following parts are available in LTspice:
LTM4612

LTpowerCAD

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:
LTM4612

Technical Support