LTM4604A

PRODUCTION

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

Data Sheet (Rev. D) Product Selection Table

Part Models: 5
1ku List Price: Starting From $10.00

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Part Details

Complete Standalone Power Supply
±1.75% Max Total DC Output Error (–40°C to 125°C)
Wide Input Voltage Range: 2.375V to 5.5V
4A DC, 5A Peak Output Current
0.8V to 5V Output
Output Voltage Tracking
UltraFast^TM Transient Response
Power Good Indicator

Current Mode Control
Current Foldback Protection, Parallel/Current Sharing
Up to 95% Efficiency
Programmable Soft-Start
Micropower Shutdown: I_Q ≤ 7μA
Overtemperature Protection
9mm × 15mm × 2.32mm LGA and
9mm × 15mm × 3.42mm BGA Packages

The LTM4604A is a complete 4A switch mode step-down μModule^® (power module) regulator with ±1.75% maximum 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 2.375V to 5.5V, the LTM4604A 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 input and output capacitors are needed to complete the design.

The 0.630mm LGA pads with 1.27mm pitch simplify PCB layout by providing standard trace routing and via placement. (The LTM4604A has smaller pads than the LTM4604). The low profile package 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.

Fault protection features include foldback current protection, thermal shutdown and a programmable soft-start function. The LTM4604A is offered with SnPb (BGA) or RoHS-compliant terminal finish.


	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
Storage Cards
ATCA Cards
Industrial Equipment

Part Models: 5
1ku List Price: Starting From $10.00

Documentation

Data Sheet 1

LTM4604A: Low Voltage, 4A DC/DC μModule (Power Module) Regulator with Tracking Data Sheet (Rev.D) 09/10/2014

User Guide 1

DC1392A - Demo Manual 06/01/2011

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
LTM4604AEV#PBF	66-Lead LGA (15mm x 9mm x 2.32mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4604AEY#PBF	66-Lead BGA (15mm x 9mm x 3.42mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4604AIV#PBF	66-Lead LGA (15mm x 9mm x 2.32mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4604AIY	66-Lead BGA (15mm x 9mm x 3.42mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4604AIY#PBF	66-Lead BGA (15mm x 9mm x 3.42mm)	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
LTM4604AEV#PBF	PRODUCTION
LTM4604AEY#PBF	PRODUCTION
LTM4604AIV#PBF	PRODUCTION
LTM4604AIY	PRODUCTION
LTM4604AIY#PBF	PRODUCTION
Feb 8, 2021 - 21_0007 Moisture Sensitivity Level Rating Downgrade for LTM4604, LTM4604A to MSL4
		PCN21_0007_Form Material_Report
LTM4604AEV#PBF	PRODUCTION
LTM4604AEY#PBF	PRODUCTION
LTM4604AIV#PBF	PRODUCTION
LTM4604AIY	PRODUCTION
LTM4604AIY#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
LTM4604AEV#PBF	PRODUCTION
LTM4604AEY#PBF	PRODUCTION
LTM4604AIV#PBF	PRODUCTION
LTM4604AIY	PRODUCTION
LTM4604AIY#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
µModule Buck Regulators 1
LTM4624	RECOMMENDED FOR NEW DESIGNS	14V_IN, 4A Step-Down DC/DC μModule (Power Module) Regulator
Digital Power System Managers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Multiple Output Buck Regulators 1
LTC3880	RECOMMENDED FOR NEW DESIGNS	Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
PowerPath, Ideal Diodes, and Load Switches 1
LTC4370	RECOMMENDED FOR NEW DESIGNS	Two-Supply Diode-OR Current Balancing Controller

Tools & Simulations

LTspice 3

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.

Evaluation Kits

LTM4604AEV Demo Board | 2.375 ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V/2.5V/3.3V @ 4A

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Product Details

Demonstration circuit 1392A features the LTM4604AEV, the high efficiency, high density switch mode step-down μModule^® regulator. The input voltage range is from 2.375V to 5.5V with a jumper selectable output voltage from 0.8V to 3.3V. The rated load current is 4A, while derating is necessary for certain VIN, VOUT and thermal conditions. By using the TRACK pin, the output can be set to coincidentally or ratiometrically track to another voltage rail.

Resources

DC1392A - Demo Manual
6/1/2011

DC1392A - Schematic
9/24/2009

DC1392A - Design File
9/24/2009

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