LTM4632

RECOMMENDED FOR NEW DESIGNS

LTM4632

Ultrathin, Triple Output, Step-Down μModule Regulator for DDR-QDR4 Memory

RECOMMENDED FOR NEW DESIGNS

Part Details

QDR4 Memory Power μModule Regulator slide

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Part Models 5

1ku List Price Starting From $8.66

Features

Complete DDR-QDR4 SRAM Power Solution Including VDDQ, VTT, VTTR (or VREF)
Solution in 0.5cm² (Dual-Sided PCB)
Wide Input Voltage Range: 3.6V to 15V
3.3V Input Compatible with V_IN Tied to INTV_CC
0.6V to 2.5V Output Voltage Range
Dual ±3A DC Output Current with Sink and Source Capability
±1.5%, ±10mA Buffered VTTR = VDDQ/2 Output
3A VDDQ + 3A VTT or Dual Phase Single 6A VTT

±1.5% Maximum Total Output Voltage Regulation Error Over Load, Line and Temperature
Current Mode Control, Fast Transient Response
External Frequency Synchronization
Multiphase Parallelable with Current Sharing
Selectable Burst Mode^® Operation
Overvoltage Input and Overtemperature Protection
Power Good Indicator
Ultrathin 6.25mm × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm × 2.42mm BGA Packages

Additional Details

The LTM4632 is an ultrathin triple output step-down μModule^® (power module) regulator to provide complete power solution for DDR-QDR4 SRAM. Operating from a 3.6V to 15V input voltage, the LTM4632 supports two ±3A output rails, both sink and source capable, for VDDQ and VTT, plus a 10mA low noise reference VTTR output. Both VTT and VTTR track and are equal to VDDQ/2. Housed in a 6.25mm × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm × 2.42mm BGA packages, the LTM4632 includes the switching controller, power FETs, inductors and support components. Alternatively, the power module can also be configured as a two phase single ±6A output VTT. Only a few ceramic input and output capacitors are needed to complete the design.

The LTM4632 supports selectable Burst Mode operation (CH1 only) and output voltage tracking for supply rail sequencing. Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability.

Fault protection features include overvoltage input, overcurrent and overtemperature protection.

The LTM4632 is RoHS compliant with Pb-free finish.

Applications

DDR Memory Power Supply
General Purpose Point of Load Conversion
Telecom, Networking and Industrial Equipment

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 5

1ku List Price Starting From $8.66

Documentation

Technical Documents 6

LTM4632: Ultrathin, Triple Output, Step-Down μModule Regulator for DDR-QDR4 Memory Data Sheet (Rev.E) 08/21/2024

R504 Reliability Data 03/26/2018

DC2367A - Demo Manual 04/14/2016

DN551 - Ultrathin Triple Output μModule Regulator for DDR, QDR and QDR-IV SRAM Fits 0.5cm2 Area and Backside of PCB 04/15/2016

3.6 V Input, Dual Output µModule Buck Regulator Produces 2 A per Channel in a 3 mm × 4 mm Footprint 03/01/2020

μModule Design and Manufacturing Resources 01/30/2018

Reference Materials 2

μModule Power Products Simplify Power 04/11/2018

Thinner & Smaller Power Circuits for PCIe Boards 11/08/2016

Design Resources 5

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
LTM4632EV#PBF	25-Lead LGA (6.25mm x 6.25mm x 1.82mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTM4632EY#PBF	25-Lead BGA (6.25mm x 6.25mm x 2.42mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTM4632IV#PBF	25-Lead LGA (6.25mm x 6.25mm x 1.82mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTM4632IY	25-Lead BGA (6.25mm x 6.25mm x 2.42mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTM4632IY#PBF	25-Lead BGA (6.25mm x 6.25mm x 2.42mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LTM4632EV#PBF
Pin/Package Drawing
25-Lead LGA (6.25mm x 6.25mm x 1.82mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTM4632EY#PBF
Pin/Package Drawing
25-Lead BGA (6.25mm x 6.25mm x 2.42mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTM4632IV#PBF
Pin/Package Drawing
25-Lead LGA (6.25mm x 6.25mm x 1.82mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTM4632IY
Pin/Package Drawing
25-Lead BGA (6.25mm x 6.25mm x 2.42mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTM4632IY#PBF
Pin/Package Drawing
25-Lead BGA (6.25mm x 6.25mm x 2.42mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

Filter by Model

Part Models

Product Lifecycle

PCN

Aug 22, 2024

- 24_0130

LTM4632 Data Sheet Revision

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN24_0130_Form

xls

Material_Report

pdf

Datasheet Specification Comparison

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN21_0159_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

Nov 4, 2020

- 20_0319

Notification of additional Assembly Location, ASE Korea for LTM4632

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN20_0319_Form

xls

Material_Report

pdf

Qualification Results Summary

pdf

Other

Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN20_0123_Form

xls

Material_Report

Test Correlation Report

Other

pdf

Qualification Results Summary

Nov 20, 2019

- 19_0219

LTM4632 Notification of Qualification of New Mold Compound and Substrate Change

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN19_0219_Form

xls

Material_Report

pdf

Qualification Results Summary

Filter by Model

Part Models

Product Lifecycle

PCN

Aug 22, 2024

- 24_0130

LTM4632 Data Sheet Revision

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN24_0130_Form

xls

Material_Report

pdf

Datasheet Specification Comparison

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN21_0159_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

Nov 4, 2020

- 20_0319

Notification of additional Assembly Location, ASE Korea for LTM4632

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN20_0319_Form

xls

Material_Report

pdf

Qualification Results Summary

pdf

Other

Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN20_0123_Form

xls

Material_Report

Test Correlation Report

Other

pdf

Qualification Results Summary

Nov 20, 2019

- 19_0219

LTM4632 Notification of Qualification of New Mold Compound and Substrate Change

LTM4632EV#PBF

PRODUCTION

LTM4632EY#PBF

PRODUCTION

LTM4632IV#PBF

PRODUCTION

LTM4632IY

PRODUCTION

LTM4632IY#PBF

PRODUCTION

pdf

PCN19_0219_Form

xls

Material_Report

pdf

Qualification Results Summary

Software & Part Ecosystem

Companion Parts 3

Parts	Product Life Cycle	Description
DDR/QDR Memory Bus Termination2
LTC3876	RECOMMENDED FOR NEW DESIGNS	Dual DC/DC Controller for DDR Power with Differential VDDQ Sensing and ±50mA VTT Reference
LTC3618	RECOMMENDED FOR NEW DESIGNS	Dual 4MHz, ±3A Synchronous Buck Converter for DDR Termination
Digital Power System Managers1
LTC2975	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement

Evaluation Kit

DC2367A

LTM4632 Demo Board | Ultrathin Triple Output Buck μModule Regulator for DDR-QDR4 Memory, 3.6V ≤ VIN ≤ 15V, ±3A VDDQ/VTT, 10mA VREF

DC2367A

LTM4632 Demo Board | Ultrathin Triple Output Buck μModule Regulator for DDR-QDR4 Memory, 3.6V ≤ VIN ≤ 15V, ±3A VDDQ/VTT, 10mA VREF

Buy Now View Details

Product Detail

Demonstration circuit DC2367A features the LTM4632EV μModule^® regulator, a tiny low-profile high-performance high efficiency dual step-down regulator for DDR power. LTM4632 has an operating input voltage range of 3.6V to 15V. The output voltage of channel 1 (VDDQ) is resistor programmable from 0.6V to 2.5V and is capable of delivering up to 3A of output current. The output voltage of channel 2 (VTT) is set to regulate ½ of the voltage on the VDDQIN pin which can provided by either the channel 1 output or an external reference voltage. It can source or sink up to 3A of output current. A 10mA buffered output of VDDQIN/2 is also provided for supplying VREF voltage for DDR memory. DC2367A also provides the option for paralleling channels 1 and 2 together for up to 6A capable VTT rail.

Resources

ZIP

DC2367A - Design Files

1.00M

PDF

DC2367A - Schematic

102.00K

PDF

DC2367A - Demo Manual

510.00K

AD-JUPITER-EBZ

Software-Defined Radio

Software-Defined Radio

Download

AD-JUPITER-EBZ

Software-Defined Radio

Features and Benefits

RF/SDR
- ADRV9002 transceiver
- 2 x receiver, 2 x transmitter
- LO frequency range 30 MHz to 6 GHz
- 12 kHz to 40 MHz frequency bandwidth
- Sampling rate 12 kSPS to 61.44 MSPS
External Device Clock Input
External MCS Input
RF Front-end
Processing System
- Zynq UltraScale+ MPSoC XCZU3EG
- DDR4 – 2 GB (x32)
- Boot source
  - SD card 3.0
  - Flash memory 128 MB

User Interfaces
- USB 3.1 Gen 1 – Type C
Ethernet 1000BASE-T RGMII
Display Port v1.2 (2 lanes, 5.4 Gbps)
SATA 3
USB (micro) debug interface
16 GPIOs (3V3 LVCMOS)

Power Sources
- USB Type-C (power only)
- USB Type-C (data)
  - Power Sink 5V/3A
  - Power Source 5V/0.9 A
- 802.3at POE compliant, 25.5 W Type2 (POE+)

Buy Now View Details

Product Detail

The AD-JUPITER-EBZ is a versatile software-defined platform based on Analog Devices ADRV9002 and Xilinx Zynq UltraScale+ MPSoC. The ADRV9002 is a new generation RF transceiver that has dual-channel transmitters, dual-channel receivers covering a frequency range of 30 MHz to 6 GHz. This device has a high-quality RF linearity performance and a set of advanced features like fast profiles switching, flexible power vs. performance configuration, fast frequency hopping, multi-chip synchronization, and digital pre-distortion (DPD) for narrow and wide band waveform.

The evaluation platform includes XCZU3EG processing device that has a wide range of interfaces, making the system capable of local processing or streaming to a remote host. It comes integrated in a self-contained ruggedized aluminum case, which gives flexibility in evaluating and prototyping across different environments.

APPLICATIONS

Aerospace and Defense
Communications
Advanced Education

Resources

WIKI

AD-JUPITER-EBZ User Guide

For hardware details please go to the User Resources Hardware section on the Wiki User's Guide

DC2367A

LTM4632 Demo Board | Ultrathin Triple Output Buck μModule Regulator for DDR-QDR4 Memory, 3.6V ≤ VIN ≤ 15V, ±3A VDDQ/VTT, 10mA VREF

AD-JUPITER-EBZ

Software-Defined Radio

Tools & Simulations

LTspice 2

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Lt Spice

LTM4632 Demo Circuit - Triple Output Ultrathin Buck Regulator for DDR-QDR4 (3.6-15V to 1.5V @ 3A, 0.75V @ ±3A, 0.75V @ 10mA)

3.00K

Lt Spice

LTM4632 - Switching Regulators

1.36 K

LTpowerCAD 1

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.

To open the project file for this circuit:

Step 1: Download and install LTpowerCAD on your computer.

Step 2: Click on the link(s) in the section below to download part-specific project files.

Step 3: If the project file doesn't run, right-click the link and select "Save Target As." Then start the LTpowerCAD tool and open the project file by selecing "Open Project" from the "File" menu.

LTpowerCAD download and documentation

Simulation Model

LTpowerCAD

LTM4632 Project - Triple Output Buck uModule Regulator for DDR-QDR4 (3.6-15V to 1.8V @ 3A, 0.9V @ ±3A, 0.9V @ 10mA)

Reference Designs

HTG-AI & Prime PCIe Express Platform - Top View

HTG-VSL1

Versal PRIME /AI PCI Express Platform

Versal VSL1 Power Tree for AI CORE VC1902 & Prime VM1802

Versal PRIME /AI PCI Express Platform

Download

HTG-VSL1

Circuits from the lab

Versal PRIME /AI PCI Express Platform

Features and Benefits

Xilinx Versal^™ AI Core and Prime series solves a broad range of industry-specific problems with performance and flexibility. Core use cases include storage acceleration, data center network acceleration, 5G xHaul and Passive optical networks.

The HTG-VSL1 AI Core and Prime PCIe express platform allows easy and versatile functional expansion through two Vita 57.4 compliant High-Pin-Count FMC+ ports and one high-speed AcceleRate^® port.

Analog Devices, Inc. supports power delivery solutions for the HTG-VSL1 for the Versal AI Core and Versal Prime PCIe express platform. DC/DC μModule regulators are used on the HTG-VSL1 to power Xilinx FPGA and/or SoC rails as well as other system rails. These regulators are highly integrated solutions with built in controller, power FETs, inductors, and capacitors that simplify layout and provide robust power delivery performance.

ADI provides supporting documentation including power schematics, layout, LTpowerPlanner^® and applicable LTpowerPlay^® configuration files to enable you to validate the power solution for your application seamlessly.

For a complete list power designs and use cases, please contact your local FAE.

Key Power DC DC Modules include:

LTM4700 is a Dual 50A or Single 100A μModule Regulator with Digital Power System Management, PMBus
LTM4638 is a 15A Step-Down DC/DC μModule Regulator
LTM4625 is a 5A Step-Down DC/DC μModule Regulator
LTM4632 is a Triple Output, Step-Down μModule Regulator for DDR-QDR4 Memory
LTC2937 is a Programmable Six Channel Sequencer and Voltage Supervisor with EEPROM

View Detailed Reference Design