LTM4671

RECOMMENDED FOR NEW DESIGNS

Quad DC/DC µModule Regulator with Configurable Dual 12A, Dual 5A Output Array

Data Sheet (Rev. B) Product Selection Table

Part Models: 2
1ku List Price: Starting From $32.35

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Part Details

Quad Output Step-Down µModule^® Regulator with Dual 12A and Dual 5A Output
Wide Input Voltage Range: 3.1V to 20V
Dual 12A DC Output from 0.6V to 3.3V
Dual 5A DC Output from 0.6V to 5.5V
Up to 7W Power Dissipation (T_A = 60°C, 200LFM, No Heat Sink)
±1.5% Total Output Voltage Regulation
Dual Differential Sensing Amplifier

Current Mode Control, Fast Transient Response
Parallelable for Higher Output Current
Selectable Burst Mode^® Operation
Output Voltage Tracking
Internal Temperature Sensing Diode Output
External Frequency Synchronization
Overvoltage, Current and Temperature Protection
9.5mm × 16mm × 4.72mm BGA Package

Part Models: 2
1ku List Price: Starting From $32.35

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
LTM4671EY#PBF	209-Lead BGA (16mm x 9.5mm x 4.72mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4671IY#PBF	209-Lead BGA (16mm x 9.5mm x 4.72mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report Delta Qualification Matrix
LTM4671EY#PBF	PRODUCTION
LTM4671IY#PBF	PRODUCTION
Jan 27, 2021 - 20_0380 LTM4671 Notification of Qualification of New Mold Compound
		PCN20_0380_Form Material_Report Qualification Results Summary
LTM4671EY#PBF	PRODUCTION
LTM4671IY#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
LTM4671EY#PBF	PRODUCTION
LTM4671IY#PBF	PRODUCTION

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

Tools & Simulations

LTspice 1

LTM4671 - ?Module Regulators

Models for the following parts are available in LTspice:

LTM4671

LTpowerCAD 1

LTM4671 Project - DC2659A 4-20Vin to 1.2Vout0/12A, 2.5Vout1/5A, 3.3Vout2/5A, 1Vout3/12A 1MHz

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.

Evaluation Kits

LTM4671 Demo Board | Quad Output (Dual 12A, Dual 5A) Step-Down μModule Regulator

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Product Details

Demonstration circuit 2659A features the LTM4671 µModule^® regulator, a high performance high efficiency four output step-down regulator. The LTM4671EY has an operating input voltage range of 3.6V to 20V providing up to 12A from each of its two higher current rails and up to 5A from each of its two lower current rails. The two higher current rails’ output voltage is programmable from 0.6V to 3.3V while the two lower current rails’ output voltage is programmable from 0.6V to 5.5V. High current rails can be paralleled together, and lower current rails can be paralleled together to satisfy higher rail current requirements. The LTM4671EY is a complete multi-output DC-DC point-of-load regulator in a thermally enhanced 16mm × 9.5mm × 4.82mm BGA package requiring only a few input and output capacitors. Output voltage tracking is made available by the TRACK/SS pins for supply rail sequencing. Temperature sensing options are included via the TSENSE and TMON pins. External clock synchronization is available through the CLKIN pins, CLKOUT pins provide for optional synchronization of additional module phases. The LTM4671 data sheet must be read in conjunction with this demo manual for working on or modifying demo circuit 2659A.

Resources

DC2659A Demo Manual (Rev.0)
1.16 M

DC2659A Schematics
130.37 K

DC2659A Design Files
2.69 M

Reference Designs

Stratix 10 GX Signal Integrity Development Kit

View Detailed Reference Design

Features and Benefits

Analog Devices has worked closely with Intel PSG to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
The validated power solutions include uModules power products that address time and space constraints while delivering high efficiency, reliability, and low noise.
The actual power tree represents the best solution at time of design.
A recommended power tree has also been included to present the ideal solution at time of Stratix 10 GX SI development kit release. An updated alternate version of the power tree represents the latest solutions available from Analog Devices. For many applications, an intermediate rail is not ideal, so recommendations for an alternate power tree that allows for direct power conversion from 12V input is provided below.