LTM4620 - Dual 13A or Single 26A DC/DC µModule Regulator

Features

  • Complete Standalone Dual Output Power Supply
  • Dual 13A or Single 26A Output
  • Wide Input Voltage Range: 4.5V to 16V
  • Output Voltage Range: 0.6V to 2.5V
  • ±1.5% Maximum Total DC Output Error
  • Multiphase Current Sharing with Multiple LTM4620s Up to 100A
  • Differential Remote Sense Amplifier
  • Current Mode Control/Fast Transient Response
  • Adjustable Switching Frequency
  • Overcurrent Foldback Protection
  • Frequency Synchronization
  • Internal Temperature Monitor
  • Output Overvoltage Protection
  • SnPb or RoHS Compliant Finish
  • Thermally Enhanced (15mm × 15mm × 4.41mm) LGA Package and (15mm × 15mm × 5.01mm) BGA Package

Typical Application

LTM4620 Typical Application
LTM4620 Typical Application

Description

The LTM®4620 is a complete dual 13A output switching mode DC/DC power supply. 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 LTM4620 supports two outputs each with an output voltage range of 0.6V to 2.5V, 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, with integrated top-side heat sink. The LTM4620 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 footprint compatible with Mentor Graphics PADS® v9.5 or later, and Cadence ORCAD® v16.5 or later.

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

15mm x 15mm x 4.41mm LGA, 15mm x 15mm x 5.01mm BGA,15mm × 15mm × 4.41mm LGA, 15mm × 15mm × 5.01mm

LTM4620 Package Drawing
LTM4620 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTM4620AEV#PBF LGA 144 E $44.69 $31.28 View
LTM4620AEY#PBF BGA 144 E $46.38 $32.48 View
LTM4620AIV#PBF LGA 144 I $49.14 $34.40 View
LTM4620AIY#PBF BGA 144 I $50.57 $35.40 View
LTM4620EV#PBF LGA 144 E $42.82 $29.99 View
LTM4620EY#PBF BGA 144 E $44.27 $30.99 View
LTM4620IV#PBF LGA 144 I $47.11 $32.98 View
LTM4620IY BGA 144 I $64.99 $45.50 View
LTM4620IY#PBF BGA 144 I $48.54 $33.98 View
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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
DC1498A LTM4620EV Demo Board | Dual 16V, 13A Step Down uModule Regulator $65.00
DC1780A-A LTM4620EV Demo Board | 50A Polyphase Step-Down Supply (Dual LTM4620) $85.00
DC1780A-B LTM4620EV Demo Board | 75A Polyphase Step-Down Supply (Triple LTM4620) $105.00
DC1780A-C LTM4620EV Demo Board | 100A Polyphase Step-Down Supply (Quad LTM4620) $125.00
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Click here to view our complete list of demo boards

Applications

  • Telecom and Networking Equipment
  • Storage and ATCA Cards
  • Industrial Equipment

Product Notifications

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Design Tools

LTpowerCAD

The LTpowerCAD II 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:
LTM4620
LTM4620A

LTspiceIV

LTspice IV 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 IV

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 IV:
LTM4620
LTM4620A

Technical Support