LTM4604

Name: LTM4604
Brand: Analog Devices
Price: 12.65 USD
Availability: InStock

PRODUCTION

Low Voltage, 4A DC/DC μModule (Power Module) Regulator with Tracking

Data Sheet (Rev. C) Product Selection Table

Part Models: 2
1ku List Price: Starting From $12.65

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Overview

Complete Standalone Power Supply
Wide Input Voltage Range: 2.375V to 5.5V
4A DC, 5A Peak Output Current
0.8V to 5V Output
Output Voltage Tracking
±2% Maximum Total DC Output Error

UltraFast^™ Transient Response
Current Mode Control
Current Foldback Protection, Parallel/Current Sharing
Small and Very Low Profile Package: 15mm × 9mm × 2.32mm LGA

The LTM4604 is a complete 4A switch mode step-down μModule^® (power module) 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 LTM4604 supports an output voltage range of 0.8V to 5V, set by a single resistor. This high efficiency design delivers up to 4A continuous current (5A peak). Only bulk input and output capacitors are needed to complete the design.

The low profile package (2.32mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. 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 output voltage tracking for supply rail sequencing.

Fault protection features include foldback current protection, thermal shutdown and a programmable soft-start function. The LTM4604 is offered in a RoHS compliant 15mm × 9mm × 2.32mm LGA package.

For easier PC board layout and assembly due to increased spacing between land grid pads, please refer to the LTM4604A.


	Notes
LTM4604	-
LTM4604A	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 and Networking Equipment
Servers, ATCA Cards
Industrial Equipment

Part Models: 2
1ku List Price: Starting From $12.65

Documentation

Data Sheet 1

LTM4604: Low Voltage, 4A DC/DC μModule (Power Module) Regulator with Tracking Data Sheet (Rev.C) 05/14/2014

Technical Articles 1

Low Voltage, High Current Step-Down µModule Regulators Put a (Nearly) Complete Power Supply in a 15mm × 9mm × 2.8mm Package 09/01/2008

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
LTM4604EV#PBF	66-Lead LGA (15mm x 9mm x 2.32mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4604IV#PBF	66-Lead LGA (15mm x 9mm x 2.32mm)	Material Declaration Reliability Report 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
LTM4604EV#PBF	PRODUCTION
LTM4604IV#PBF	PRODUCTION
Feb 8, 2021 - 21_0007 Moisture Sensitivity Level Rating Downgrade for LTM4604, LTM4604A to MSL4
		PCN21_0007_Form Material_Report
LTM4604EV#PBF	PRODUCTION
LTM4604IV#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
LTM4604EV#PBF	PRODUCTION
LTM4604IV#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
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Supervisory Circuits & Reset ICs 1
LTC2917	PRODUCTION	Voltage Supervisor with 27 Selectable Thresholds and Watchdog Timer
Temperature Sensors 1
LTC2991	RECOMMENDED FOR NEW DESIGNS	Octal I²C Voltage, Current, and Temperature Monitor

Parts	Product Life Cycle	Description
LTM4604A	PRODUCTION	Low Voltage, 4A DC/DC μModule (Power Module) Regulator with Tracking
LTM4624	RECOMMENDED FOR NEW DESIGNS	14V_IN, 4A Step-Down DC/DC μModule (Power Module) Regulator

Tools & Simulations

LTspice 1

LTM4604 Demo Circuit - 4A, Step-Down DC/DC µModule (5V to 2.5V @ 4A)

Models for the following parts are available in LTspice:

LTM4604
LTM4604A

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.

Reference Designs

View Detailed Reference Design

Features and Benefits

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
Our team can provide designs for quick prototypes that can speed time to market in the most complex applications