LTM4631

Name: LTM4631
Brand: Analog Devices
Price: 37.05 USD
Availability: InStock

RECOMMENDED FOR NEW DESIGNS

Ultrathin Dual 10A or Single 20A DC/DC μModule Regulator

Data Sheet Product Selection Table

Part Models: 5
1ku List Price: Starting From $37.05

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Overview

Dual 10A or Single 20A Output
Input Voltage Range: 4.5V to 15V
Output Voltage Range: 0.6V to 1.8V
±1.5% Maximum Total DC Output Error Over Line, Load and Temperature
Differential Remote Sense Amplifier
Current Mode Control/Fast Transient Response
Adjustable Switching Frequency
Overcurrent Foldback Protection
Multiphase Parallel Current Sharing with Multiple LTM4631s
Frequency Synchronization
Internal Temperature Monitor
Selectable Burst Mode^® Operation
Soft-Start/Voltage Tracking
Output Overvoltage Protection
Ultrathin 16mm × 16mm × 1.91mm LGA and 16mm x 16mm x 2.51mm BGA Packages

Part Models: 5
1ku List Price: Starting From $37.05

Documentation

Data Sheet 1

LTM4631: Ultrathin Dual 10A or Single 20A DC/DC μModule Regulator Data Sheet 08/10/2017

User Guide 2

DC2268A-G - Demo Manual (Rev.0) 12/10/2020

DC2147A - Demo Manual 08/01/2016

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
LTM4631EV#PBF	144-Lead LGA (16mm x 16mm x 1.91mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4631EY#PBF	144-Lead BGA (16mm x 16mm x 2.51mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4631IV#PBF	144-Lead LGA (16mm x 16mm x 1.91mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4631IY	144-Lead BGA (16mm x 16mm x 2.51mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4631IY#PBF	144-Lead BGA (16mm x 16mm x 2.51mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 15, 2022 - 22_0053 LTM4631 Notification of qualification for additional mold compound and additional assembly location ASE Korea.
		PCN22_0053_Form Material_Report
LTM4631EV#PBF	PRODUCTION
LTM4631EY#PBF	PRODUCTION
LTM4631IV#PBF	PRODUCTION
LTM4631IY	PRODUCTION
LTM4631IY#PBF	PRODUCTION
Aug 20, 2021 - 20_0311 Supplier Material Change for µModule
		PCN20_0311_Form Material_Report
LTM4631EV#PBF	PRODUCTION
LTM4631EY#PBF	PRODUCTION
LTM4631IV#PBF	PRODUCTION
LTM4631IY	PRODUCTION
LTM4631IY#PBF	PRODUCTION
Jul 28, 2021 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0245_Form Material_Report Other
LTM4631EV#PBF	PRODUCTION
LTM4631EY#PBF	PRODUCTION
LTM4631IV#PBF	PRODUCTION
LTM4631IY	PRODUCTION
LTM4631IY#PBF	PRODUCTION
Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report
LTM4631EV#PBF	PRODUCTION
LTM4631EY#PBF	PRODUCTION
LTM4631IV#PBF	PRODUCTION
LTM4631IY	PRODUCTION
LTM4631IY#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
LTM4631EV#PBF	PRODUCTION
LTM4631EY#PBF	PRODUCTION
LTM4631IV#PBF	PRODUCTION
LTM4631IY	PRODUCTION
LTM4631IY#PBF	PRODUCTION
Feb 5, 2020 - 20_0127 Supplier Material Change for µModule
		PCN20_0127_Form Material_Report Qualification Results Summary
LTM4631EV#PBF	PRODUCTION
LTM4631EY#PBF	PRODUCTION
LTM4631IV#PBF	PRODUCTION
LTM4631IY	PRODUCTION
LTM4631IY#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
LTC2975	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement

Tools & Simulations

LTspice 1

LTM4631 Demo Circuit - High Efficiency, High Density, Dual 10A Buck Regulator (4.5-15V to 1V & 1.2V @ 10A)

Models for the following parts are available in LTspice:

LTM4631

LTpowerCAD 1

LTM4631 Project - Ultrathin Dual 10A DC/DC μModule Regulator (4.5-15V to 1.2V @ 10A & 1V @ 10A)

Design tools for the following parts are available in LTpowerCAD:

LTM4631

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

LTM4631 Demo Board | Buck Module Regulator, 4.5V ≤ VIN ≤ 15V, VOUT1/VOUT2 = 1.2V/1.0V @ 10A

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Product Details

Demonstration circuit 2147A features the LTM4631, the high efficiency, high density, dual 10A, switch mode step-down μModule^® power module regulator in an ultrathin 1.91mm height package. The input voltage is from 4.5V to 15V and the demo board provides 1.2V and 1V outputs at up to 10A maximum from each channel. As explained in the data sheet, output current derating is necessary for certain V_IN , V_OUT , and thermal conditions.

The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the MODE jumper (JP1) selects pulse-skipping mode for noise sensitive applications or Burst Mode^® operation in less noise sensitive applications. Two outputs can be connected in parallel for a single 20A output solution with optional jumper resistors. The board allows the user to program how its output ramps up and down through the TRACK/SS pin. The output can be set up to either coincidentally or ratio-metrically track with another supply’s output. Remote output voltage sensing is available for improved output voltage regulation at the load point. These features and the availability of the LTM4631 in a compact 16mm × 16mm × 1.91mm LGA package make it ideal for use in many high density point-of-load regulation applications. The LTM4631 data sheet must be read in conjunction with this demo manual for working on or modifying the demo circuit DC2147A.

Resources

DC2147A - Demo Manual
8/1/2016

DC2147A - Design Files
8/1/2016

DC2147A - Schematic
8/1/2016

LTM4631 Demo Board | Dual 10A or Single 20A μModule Regulator

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Product Details

Demonstration circuit 2268A-G is a high efficiency, high density, dual 10A, switch mode step-down power supply on a compact 1.5-inch × 1.2-inch PCB. It features the LTM4631 µModule^® regulator. The input voltage is from 4.5V to 15V. The output voltage is programmable from 0.6V to 1.8V. DC2268A-G can deliver up to 10A maximum in each channel. As explained in the data sheet, output current derating is necessary for certain V_IN, V_OUT, and thermal conditions. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the resistor jumper (R1/R2) selects pulse-skipping mode for noise sensitive applications or Burst Mode^® operation in less noise sensitive applications. Two outputs can be connected in parallel for a single 20A output solution with optional jumper resistors.

The board allows the user to program how its output ramps up and down through the TRACK/SS pin. Remote output voltage sensing is available for improved output voltage regulation at the load point. An optional input inductor L1 reduces the EMI noise for noise sensitive applications. DC2268A can be easily inserted to an edge connector for testing and debugging. These features and the availability of the LTM4631 in a compact 16mm × 16mm × 4.41mm LGA package make it ideal for use in many high density point-of-load regulation applications. The LTM4631 data sheet must be read in conjunction with the demo manual for working on or modifying the DC2268A-G.