LTM4649
10A Step-Down DC/DC μModule (Power Module) Regulator
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Overview
Features and Benefits
- 10A DC Output Current
- Input Voltage Range: 4.5V to 16V
- Output Voltage Range: 0.6V Up to 3.3V
- No Heat Sink or Current Derating Up to 85°C Ambient Temperature
- ±1.5% Total DC Voltage Output Error
- Multiphase Operation with Current Sharing
- Remote Sense Amplifier
- Built-In General Purpose Temperature Monitor
- Selectable Pulse-Skipping Mode/Burst Mode® Operation for High Efficiency at Light Load
- Soft-Start/Voltage Tracking
- Protection: Output Overvoltage and Overcurrent Foldback
- 9mm × 15mm × 4.92mm BGA Package
Product Details
The LTM4649 is a complete 10A high efficiency switching mode step-down DC/DC μModule® regulator in a 9mm × 15mm × 4.92 BGA package. Included in the package are the switching controller, power FETs, inductor, and all support components. Operating over an input voltage range of 4.5V to 16V, the LTM4649 supports an output voltage range of 0.6V to 3.3V, set by a single external resistor. This high efficiency design delivers 10A continuous current. Only bulk input and output capacitors are needed.
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, programmable multiphase operation, and output voltage tracking for supply rail sequencing.
Fault protection features include output overvoltage and overcurrent protection. The LTM4649 is offered in a small 9mm × 15mm × 4.92mm BGA package available with SnPb or RoHS compliant terminal finish.
Applications
- Telecom, Networking and Industrial Equipment
- Point of Load Regulation
Product Categories
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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R504 Reliability Data3/26/2018
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DC1856B-B - Demo Manual2/17/2016
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SnPb (Tin-Lead) BGA Packages μModule Power Products7/13/2017
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μModule Power Products4/4/2017
Tools & Simulations
LTspice
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
LTspice Simulations
Models for the following parts are available in LTspice:
LTM4649
LTpowerCAD
LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
To open the project file for this circuit:
Step 1: Download and install LTpowerCAD on your computer.
Step 2: Click on the link(s) in the section below to download part-specific project files.
Step 3: If the project file doesn't run, right-click the link and select "Save Target As." Then start the LTpowerCAD tool and open the project file by selecing "Open Project" from the "File" menu.
LTpowerCAD Project Files
Design tools for the following parts are available in LTpowerCAD:
LTM4649
Reference Designs (3)
Product Recommendations
LTM4649 Companion Parts
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LTM4649EY#PBF | Material Declaration | Reliability Data | 68-Lead BGA (15mm x 9mm x 4.92mm) | |
| LTM4649IY | Material Declaration | Reliability Data | 68-Lead BGA (15mm x 9mm x 4.92mm) | |
| LTM4649IY#PBF | Material Declaration | Reliability Data | 68-Lead BGA (15mm x 9mm x 4.92mm) | |
| Wafer Fabrication Data | R504 Reliability Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
LTM4649 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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 Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.