LTM4650-1 - Dual 25A or Single 50A µModule Regulator with 0.8% DC and 3% Transient Accuracy

Features

  • ±0.8% Maximum Total DC Output Error Over Line and Load (LTM4650-1A)
  • ±3% Transient Output Error with Minimum Output Capacitance
  • Dual 25A or Single 50A Output
  • 4.5V to 15V Input, 0.6V to 1.8V Output Voltage Range
  • Differential Remote Sense Amplifier
  • Current Mode Control/Fast Transient Response
  • Current Sharing Up to 300A
  • 16mm × 16mm × 5.01mm BGA Package

Typical Application

LTM4650-1 Typical Application
LTM4650-1 Typical Application
LTM4650-1 Typical Application

Description

The LTM4650-1A/LTM4650-1B is dual 25A or single 50A output step-down µModule® (power module) regulator with ±0.8% (LTM4650-1A) and ±1.5% (LTM4650-1B) total DC output error with ±3% transient output error. Included in the package are the switching controller, power FETs, inductors, and all supporting components. External compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors. With synchronized multiphase parallel current sharing, six LTM4650-1 devices can deliver up to 300A. The LTM4650-1 is offered in a 16mm × 16mm × 5.01 BGA package, with SnPb (BGA) or RoHS compliant terminal finish.

  FEATURES
LTM4650 -
LTM4650-1 ±3% Transient Output Error with Minimum
Output Capacitance

Packaging

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

Part Number Package Code Temp Package
Drawing
RoHS
LTM4650EY-1A#PBF 16mm × 16mm × 5.01mm BGA BGA E 05-08-1523 Yes
LTM4650EY-1B#PBF 16mm × 16mm × 5.01mm BGA BGA E 05-08-1523 Yes
LTM4650IY-1A#PBF 16mm × 16mm × 5.01mm BGA BGA I 05-08-1523 Yes
LTM4650IY-1B#PBF 16mm × 16mm × 5.01mm BGA BGA I 05-08-1523 Yes


LTM4650-1 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
LTM4650EY-1A#PBF 16mm × 16mm × 5.01mm BGA E $68.36 $47.85 Yes
LTM4650EY-1B#PBF 16mm × 16mm × 5.01mm BGA E $66.79 $46.75 Yes
LTM4650IY-1A#PBF 16mm × 16mm × 5.01mm BGA I $75.19 $52.63 Yes
LTM4650IY-1B#PBF 16mm × 16mm × 5.01mm BGA I $73.46 $51.42 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
DC2378A-B LTM4650-1 Demo Board | Single 50A/Dual 25A Buck µModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout1/Vout2 = 0.9V/1.0V/1.2V/1.5V/1.8V @ 25A $65.00
DC2455A-A LTM4650-1 Demo Board | LTM4650-1 (x2) Buck µModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout = 0.9V to 1.8V @ 100A $105.00
DC2455A-B LTM4650-1 Demo Board | LTM4650-1 (x3) Buck µModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout = 0.9V to 1.8V @ 150A $135.00
DC2455A-C LTM4650-1 Demo Board | LTM4650-1 (x4) Buck µModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout = 0.9V to 1.8V @ 200A $165.00
DC2479A-B LTM4650EY-1 Demo Board | Dual Phase Buck μModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout = 0.6V to 1.8V @ 50A $65.00
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Click here to view our complete list of demo boards

Applications

  • FPGA, ASIC, μProcessor Core Voltage Regulation
  • Information, Communication 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:
LTM4650
LTM4650-1

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:
LTM4650
LTM4650 Parallel
LTM4650-1
LTM4650-1 Parallel
LTM4650A-1
LTM4650A-1 Parallel

Technical Support