LTM4648

RECOMMENDED FOR NEW DESIGNS

Low V_IN, 10A Step-Down μModule Regulator

Data Sheet (Rev. B) Product Selection Table

Part Models: 3
1ku List Price: Starting From $15.60

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Overview

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 16V_IN Operation
9mm × 15mm × 4.92mm BGA Package

The LTM4648 is a 10A low V_IN 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 16V_IN operation, see the LTM4649.

Applications

Telecom, Networking and Industrial Equipment
Point of Load Regulation

Part Models: 3
1ku List Price: Starting From $15.60

Documentation

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 Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTM4648EY#PBF	68-Lead BGA (15mm x 9mm x 4.92mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4648IY	68-Lead BGA (15mm x 9mm x 4.92mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4648IY#PBF	68-Lead BGA (15mm x 9mm x 4.92mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 4, 2024 - 24_0225 LTM4620, LTM4620A, LTM4677, LTM4648 and LTM4649 Change of FET
		PCN24_0225_Form Material_Report Qualification Results Summary
LTM4648EY#PBF	PRODUCTION
LTM4648IY	PRODUCTION
LTM4648IY#PBF	PRODUCTION
Jul 28, 2021 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0245_Form Material_Report Delta Qualification Matrix Other Qualification Results Summary
LTM4648EY#PBF	PRODUCTION
LTM4648IY	PRODUCTION
LTM4648IY#PBF	PRODUCTION
Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report Delta Qualification Matrix
LTM4648EY#PBF	PRODUCTION
LTM4648IY	PRODUCTION
LTM4648IY#PBF	PRODUCTION
Feb 28, 2020 - 20_0123 Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia
		PCN20_0123_Form Material_Report Test Correlation Report Other Qualification Results Summary
LTM4648EY#PBF	PRODUCTION
LTM4648IY	PRODUCTION
LTM4648IY#PBF	PRODUCTION
Feb 5, 2020 - 20_0127 Supplier Material Change for µModule
		PCN20_0127_Form Material_Report Qualification Results Summary
LTM4648EY#PBF	PRODUCTION
LTM4648IY	PRODUCTION
LTM4648IY#PBF	PRODUCTION
Nov 20, 2019 - 19_0227 LTM4648, LTM4649 - MOSFET Supplier Material Change
		PCN19_0227_Form Material_Report Qualification Results Summary
LTM4648EY#PBF	PRODUCTION
LTM4648IY	PRODUCTION
LTM4648IY#PBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Power System Management (PSM) & Sequencers 1
LTC2975	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement

Tools & Simulations

LTspice 1

LTM4648 Demo Circuit - 10A Buck µModule Regulator (2.4-5.5V to 1.5V @ 10A)

Models for the following parts are available in LTspice:

LTM4648

LTpowerCAD 1

LTM4648 Project - Low Vin Step-Down μModule Regulator (2.4-5.5V to 1.5V @ 10A)

Design tools for the following parts are available in LTpowerCAD:

LTM4648

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.

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.