LTM4620A - Dual 13A or Single 26A DC/DC μModule (Power Module) Regulator

Features

  • Dual 13A or Single 26A Output
  • Wide Input Voltage Range: 4.5V to 16V
  • Output Voltage Range: 0.6V to 5.3V
  • ±1.5% Maximum Total DC Output Error
  • Multiphase Current Sharing with Multiple LTM4620As Up to 100A
  • Higher Efficiency and Wider VOUT Range Than LTM4620
  • Differential Remote Sense Amplifier
  • Current Mode Control/Fast Transient Response
  • Adjustable Switching Frequency
  • Overcurrent Foldback Protection
  • Frequency Synchronization
  • Internal Temperature Monitor
  • Output Overvoltage Protection
  • Pin Compatible with the LTM4628 (Dual 8A) and LTM4620 (Dual 13A)
  • Thermally Enhanced (15mm × 15mm × 4.41mm)
  • LGA Package and (15mm × 15mm × 5.01mm) BGA Package

Typical Application

LTM4620A Typical Application
LTM4620A Typical Application

Description

The LTM®4620A is a complete dual 13A, or single 26A output switching mode DC/DC power supply with wider VOUT range and higher efficiency than the LTM4620. Included in the package are the switching controller, power FETs, inductors and all supporting components. Operating from an input voltage range of 4.5V to 16V, the LTM4620A supports two outputs each with an output voltage range of 0.6V to 5.3V, set by a single external resistor. Its high efficiency design delivers up to 13A continuous current for each output. Only a few input and output capacitors are needed.

The device supports frequency synchronization, multiphase operation, Burst Mode® operation and output voltage tracking for supply rail sequencing and has an onboard temperature diode for device temperature monitoring. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability.

Fault protection features include overvoltage and overcurrent protection. The power module is offered in a proprietary space saving and thermally enhanced 15mm × 15mm × 4.41mm LGA package and 15mm × 15mm × 5.01mm BGA package. The LTM4620A is available with SnPb (BGA) or RoHS compliant terminal finish.

  Vout Range Efficiency 12Vin, 1.2Vout
LTM4620  0.6V-2.5V 83%
LTM4620A 0.6V-5.3V 86%

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
LTM4620AEV#PBF 15mm × 15mm × 4.41mm LGA LGA E 05-08-1844 Yes
LTM4620AEY#PBF 15mm x 15mm x 5.01mm BGA BGA E 05-08-1880 Yes
LTM4620AIV#PBF 15mm × 15mm × 4.41mm LGA LGA I 05-08-1844 Yes
LTM4620AIY#PBF 15mm x 15mm x 5.01mm BGA BGA I 05-08-1880 Yes
LTM4620AMPY 15mm x 15mm x 5.01mm BGA BGA MP 05-08-1880 No
LTM4620AMPY#PBF 15mm x 15mm x 5.01mm BGA BGA MP 05-08-1880 Yes


LTM4620A Package Drawing
LTM4620A 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
LTM4620AEV#PBF 15mm × 15mm × 4.41mm LGA E $44.69 $31.28 Yes
LTM4620AEY#PBF 15mm x 15mm x 5.01mm BGA E $46.38 $32.48 Yes
LTM4620AIV#PBF 15mm × 15mm × 4.41mm LGA I $49.14 $34.40 Yes
LTM4620AIY#PBF 15mm x 15mm x 5.01mm BGA I $50.57 $35.40 Yes
LTM4620AMPY 15mm x 15mm x 5.01mm BGA MP $107.49 $75.24 No
LTM4620AMPY#PBF 15mm x 15mm x 5.01mm BGA MP $91.03 $63.72 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
DC1759A LTM4620AEV Demo Board | Dual Buck µModule Regulator, 5.5V ≤ VIN ≤ 16V, Vout1 = 3.3V @ 13A, Vout2 = 5V @ 13A $65.00
DC2204B LTM4675 + LTM4676A + LTM4677 + LTM4620A Demo Board | PSM μModule Power Stick $125.00
DC2268A-B LTM4620AEV Demo Board | 1.5' × 1.2' PCB, Dual Buck µModule Regulator, 5.5V ≤ VIN ≤ 16V, Vout1 = 3.3V @ 13A, Vout2 = 1.5V @ 13A $65.00
Buy Now
Click here to view our complete list of demo boards

Applications

  • Telecom and Networking Equipment
  • Industrial Equipment

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:
LTM4620
LTM4620A

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:

  • Step 1: If you have not installed LTpowerCAD on this computer, download and install LTpowerCAD
  • Step 2: Once LTpowerCAD is installed, click on the link(s) below to open the project file
  • Step 3: If LTpowerCAD does not automatically open after clicking the link above, you can open the project file by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTpowerCAD and open the project file by selecting 'Open Project' from the 'File' menu

Design tools for the following parts are available in LTpowerCAD:
LTM4620
LTM4620 Parallel
LTM4620A
LTM4620A Parallel

Technical Support