LTM4608A

PRODUCTION

Low V_IN, 8A DC/DC μModule (Power Module) Regulator with Tracking, Margining, and Frequency Synchronization

Part Models: 7
1ku List Price: Starting From $13.30

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Overview

Complete Standalone Power Supply
±1.75% Total DC Output Error (–55°C to 125°C)
2.7V to 5.5V Input Voltage Range
8A DC, 10A Peak Output Current
0.6V Up to 5V Output
Output Voltage Tracking and Margining
Power Good Tracks Margining
Multiphase Operation
Parallel Current Sharing

On-board Frequency Synchronization
Spread Spectrum Frequency Modulation
Overcurrent/Thermal Shutdown Protection
Current Mode Control/Fast Transient Response
Selectable Burst Mode^® Operation
Up to 95% Efficiency
Output Overvoltage Protection
9mm × 15mm × 2.82mm LGA and 9mm × 15mm × 3.42mm BGA Packages

The LTM4608A is a complete 8A switch mode DC/DC power supply with ±1.75% total output voltage error. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 2.7V to 5.5V, the LTM4608A supports an output voltage range of 0.6V to 5V, set by a single external resistor. This high efficiency design delivers up to 8A continuous current (10A peak). Only bulk input and output capacitors are needed to complete the design.

The low profile package (2.82mm) enables utilization of unused space on the back side of PC boards for high density point-of-load regulation. The 0.630mm LGA pads with 1.27mm pitch simplify PCB layout by providing standard trace routing and via placement. The high switching frequency and current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, programmable multiphase and/or spread spectrum operation, output voltage tracking for supply rail sequencing and voltage margining.

Fault protection features include overvoltage protection, overcurrent protection and thermal shutdown. The LTM4608A is offered in 9mm × 15mm × 2.82mm LGA and 9mm × 15mm × 3.42mm BGA packages. The LTM4608A is available with SnPb (BGA) or RoHS compliant terminal finish.


	Notes
LTM4608	-
LTM4608A	Smaller pad sizes provide more distance between adjacent pads therefore there is less chance of solder paste or solder spreading outside the pad area

Applications

Telecom, Networking and Industrial Equipment
Storage Systems
Point of Load Regulation

Part Models: 7
1ku List Price: Starting From $13.30

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
LTM4608AEV#PBF	68-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4608AEY#PBF	68-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4608AIV#PBF	68-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4608AIY#PBF	68-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4608AMPV#PBF	68-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4608AMPY	68-Lead BGA (15mm x 9mm x 3.42mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4608AMPY#PBF	68-Lead BGA (15mm x 9mm x 3.42mm)	Material Declaration Reliablity Data Package Resources	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
LTM4608AEV#PBF	PRODUCTION
LTM4608AEY#PBF	PRODUCTION
LTM4608AIV#PBF	PRODUCTION
LTM4608AIY#PBF	PRODUCTION
LTM4608AMPV#PBF	PRODUCTION
LTM4608AMPY	PRODUCTION
LTM4608AMPY#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
LTM4608AEV#PBF	PRODUCTION
LTM4608AEY#PBF	PRODUCTION
LTM4608AIV#PBF	PRODUCTION
LTM4608AIY#PBF	PRODUCTION
LTM4608AMPV#PBF	PRODUCTION
LTM4608AMPY	PRODUCTION
LTM4608AMPY#PBF	PRODUCTION

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

Software Resources

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Request a Driver/Software

Hardware Ecosystem

Parts	Product Life Cycle	Description
Oscillators 1
LTC6908		Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation
Power System Management (PSM) & Sequencers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Protection Switches & Controllers 1
LTC4365	RECOMMENDED FOR NEW DESIGNS	Overvoltage, Undervoltage and Reverse Supply Protection Controller
Switching Regulators & Controllers 2
LTM4616	RECOMMENDED FOR NEW DESIGNS	Dual 8A per Channel Low V_IN DC/DC μModule (Power Module) Regulator

LTC3880

RECOMMENDED FOR NEW DESIGNS

Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management

Tools & Simulations

LTspice 1

LTM4608A Demo Circuit - 8A, Step-Down uModule (5V to 1.5V @ 8A)

Models for the following parts are available in LTspice:

LTM4608
LTM4608A

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.

Evaluation Kits

LTM4608AEV Demo Board | 2.7 VIN Minimum, 8A DC/DC µModule Regulator

Buy Now View Details

Product Details

DC1400A: Demo Board for LTM4608A Low V_IN, 8A DC/DC µModule with Tracking, Margining, and Frequency Synchronization

Resources

DC1400A - Schematic
9/24/2009

DC1400A - Design File
9/24/2009

DC1400A - Demo Manual
11/16/2010

Reference Designs

Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)

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.