LTM4648: Low VIN, 10A Step-Down μModule Regulator Data Sheet (Rev. A)11/10/20151 M
Features and Benefits
- 10A DC Output Current
- Input Voltage Range: 2.375V to 5.5V
- Output Voltage Range: 0.6V to 5V
- No Heat Sink or Current Derating Up to 85°C Ambient Temperature
- ±1.5% Maximum Total DC Output Error
- Multiphase Operation with Current Sharing
- Remote Sense Amplifier
- Built-In 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
- See LTM4649 for Up to 16VIN Operation
- 9mm × 15mm × 4.92mm BGA Package
The LTM4648 is a 10A low VIN step-down DC/DC μModule® (micromodule) regulator. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 2.375V to 5.5V, the LTM4648 supports an output voltage range of 0.6V to 5V, set by a single external resistor. This high efficiency design delivers up to 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 overvoltage protection, overcurrent protection and thermal shutdown. The LTM4648 is offered in a small 9mm × 15mm × 4.92mm BGA package available with SnPb or RoHS compliant terminal finish. For up to 16VIN operation, see the LTM4649.
- Telecom, Networking and Industrial Equipment
- Point of Load Regulation
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)
DC1856A-A: Demo Board
Documentation & Resources
R504 Reliability Data3/26/2018347 K
DC1856A-A - Demo Manual11/4/20161M
SnPb (Tin-Lead) BGA Packages μModule Power Products7/13/20171M
Tools & Simulations
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Models for the following parts are available in LTspice:
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:
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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:
LTM4648 Companion Parts
Recommended Related Parts
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|
|LTM4648EY#PBF||Material Declaration||Reliability Data||68-Lead BGA (15mm x 9mm x 4.92mm)|
|LTM4648IY||Material Declaration||Reliability Data||68-Lead BGA (15mm x 9mm x 4.92mm)|
|LTM4648IY#PBF||Material Declaration||Reliability Data||68-Lead BGA (15mm x 9mm x 4.92mm)|
|Wafer Fabrication Data||R504 Reliability Data|
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