LTM4627 - 15A DC/DC μModule (Power Module) Regulator

Features

  • Complete 15A Switch Mode Power Supply
  • Wide Input Voltage Range: 4.5V to 20V
  • 0.6V to 5V Output Range
  • ±1.5% Total DC Output Error
  • Differential Remote Sense Amplifier for Precision Regulation
  • Current Mode Control/ Fast Transient Response
  • Frequency Synchronization
  • Parallel Current Sharing (Up to 60A)
  • Selectable Pulse-Skipping or Burst Mode® Operation
  • Soft-Start/Voltage Tracking
  • Up to 93% Efficiency (12VIN, 3.3VOUT)
  • Overcurrent Foldback Protection
  • Output Overvoltage Protection
  • Small Surface Mount Footprint, Low Profile
    15mm × 15mm × 4.32mm LGA and
    15mm × 15mm × 4.92mm BGA Packages

Typical Application

LTM4627 Typical Application
LTM4627 Typical Application

Description

The LTM®4627 is a complete 15A output high efficiency switch mode DC/DC power supply. 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 LTM4627 supports an output voltage range of 0.6V to 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 LTM4627 regulators to obtain 60A 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 operation, Burst Mode operation and output voltage tracking for supply rail sequencing.

The LTM4627 is offered in thermally enhanced 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA packages. The LTM4627 is available with SnPb (BGA) or RoHS compliant terminal finish.

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
LTM4627EV#PBF 15mm × 15mm × 4.32mm LGA LGA E 05-08-1777 Yes
LTM4627EY#PBF 15mm x 15mm x 4.92mm BGA BGA E 05-08-1897 Yes
LTM4627IV#PBF 15mm × 15mm × 4.32mm LGA LGA I 05-08-1777 Yes
LTM4627IY#PBF 15mm x 15mm x 4.92mm BGA BGA I 05-08-1897 Yes
LTM4627MPY 15mm x 15mm x 4.92mm BGA BGA MP 05-08-1897 No
LTM4627MPY#PBF 15mm x 15mm x 4.92mm BGA BGA MP 05-08-1897 Yes


LTM4627 Package Drawing
LTM4627 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
LTM4627EV#PBF 15mm × 15mm × 4.32mm LGA E $25.70 $17.99 Yes
LTM4627EY#PBF 15mm x 15mm x 4.92mm BGA E $27.36 $19.15 Yes
LTM4627IV#PBF 15mm × 15mm × 4.32mm LGA I $28.26 $19.78 Yes
LTM4627IY#PBF 15mm x 15mm x 4.92mm BGA I $30.09 $21.06 Yes
LTM4627MPY 15mm x 15mm x 4.92mm BGA MP $69.35 $48.55 No
LTM4627MPY#PBF 15mm x 15mm x 4.92mm BGA MP $54.16 $37.91 Yes
Buy NowRequest Samples
* 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
DC1668B-A LTM4627EV Demo Board | Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A $75.00
DC1668B-C LTM4627EV Demo Board | LTM4627(x4), Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 50A $95.00
DC1669A LTM4627EV Demo Board | 20V, 15A Step-Down uModule Regulator $65.00
Buy Now
Click here to view our complete list of demo boards

Applications

  • Telecom Servers and Networking Equipment
  • ATCA and Storage Cards
  • Industrial Equipment
  • Medical Systems

Product Notifications

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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:
LTM4627

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

To open the project file for this circuit:

Design tools for the following parts are available in LTpowerCAD:
LTM4627
LTM4627 Parallel

Technical Support