LTM4668A

RECOMMENDED FOR NEW DESIGNS

Quad DC/DC µModule Regulator with Configurable 1.2A Output Array

Data Sheet (Rev. D) Product Selection Table

Part Models: 3
1ku List Price: Starting From $7.71

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Part Details

Quad Output Step-Down µModule Regulator with 1.2A per Output Channel
Wide Input Voltage Range: 2.7V to 17V
0.6V to 5.5V Output Voltage
1.2A DC, Parallelable, Output Current Each Channel
±1.5% Total Output Voltage Regulation
100% Duty Cycle Operation

Current Mode Control, Fast Transient Response
External Frequency Synchronization
Selectable Burst Mode^® Operation
Power Good Indicator
Over Voltage, Current and Temperature Protection
6.25mm × 6.25mm × 2.1mm BGA Package
Pin Compatible with LTM4668 (0.6V to 1.8V Output, 1MHz)

Part Models: 3
1ku List Price: Starting From $7.71

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
LTM4668AEY#PBF	49-Lead BGA (6.25mm x 6.25mm x 2.10mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4668AIY	49-Lead BGA (6.25mm x 6.25mm x 2.10mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4668AIY#PBF	49-Lead BGA (6.25mm x 6.25mm x 2.10mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN
No Match Found
Sep 12, 2023 - 23_0160 LTM4668A/LTM4668 Data Sheet Revision
		PCN23_0160_Form Material_Report Datasheet_Markup_LTM4668_A
LTM4668AEY#PBF	PRODUCTION
LTM4668AIY#PBF	PRODUCTION
Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report Delta Qualification Matrix
LTM4668AEY#PBF	PRODUCTION
LTM4668AIY#PBF	PRODUCTION
Mar 20, 2020 - 19_0067 Notification of Wafer Fab Location Change for 0.35 BCD Process
		PCN19_0067_Form Material_Report Qualification Results Summary Other
LTM4668AEY#PBF	PRODUCTION
LTM4668AIY#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
LTM4668AEY#PBF	PRODUCTION
LTM4668AIY#PBF	PRODUCTION

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

Tools & Simulations

LTspice 1

LTM4668A - ?Module Regulators

Models for the following parts are available in LTspice:

LTM4668
LTM4668A

LTpowerCAD 1

LTM4668A Project - DC2785A-B 12Vin to 1.8Vout1/1.2A, 2.5Vout2/1.2A, 3.3Vout3/1.2A, 5Vout4/1.2A, 2.25MHz

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

LTM4668A Demo Board | Tiny Quad 1.2A Output Step-Down µModule Regulator

Buy Now View Details

Product Details

Demonstration circuit 2785A-B features the LTM4668A µModule^® regulator, a Quad 1.2A high efficiency step-down regulator. DC2785A-B has an operating input voltage range of 2.7V to 17V and can provide an output current of up to 1.2A. The output voltage can be programmed from 1.8V up to 5V. The LTM4668A is a complete DC/DC point of load regulator in a thermally enhanced 6.25mm × 6.25mm × 2.1mm BGA package requiring only a few input and output capacitors.

External clock synchronization is available through the CLKIN turret. The LTM4668A data sheet must be read in conjunction with this demo manual for working on or modifying demo circuit 2785A-B.

Resources

DC2785A-B - Demo Manual
612.48 K

DC2785A-B - Design Files
8.27 M

DC2785A - Schematic
88.84 K

Reference Designs

Altera FPGA

View Detailed Reference Design

Features and Benefits

Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
Our reference designs are supported by an intuitive design tool set and IP.
ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
For a complete list power designs and use cases, please contact your local FAE.

Part Used

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.