LTM4632

RECOMMENDED FOR NEW DESIGNS

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

Data Sheet (Rev. E) Product Selection Table

Part Models: 5
1ku List Price: Starting From $8.66

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Part Details

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

Part Models: 5
1ku List Price: Starting From $8.66

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

Part Models	Product Lifecycle	PCN

Aug 22, 2024 - 24_0130 LTM4632 Data Sheet Revision
		PCN24_0130_Form Material_Report Datasheet Specification Comparison
LTM4632EV#PBF	PRODUCTION
LTM4632EY#PBF	PRODUCTION
LTM4632IV#PBF	PRODUCTION
LTM4632IY	PRODUCTION
LTM4632IY#PBF	PRODUCTION
Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report Delta Qualification Matrix
LTM4632EV#PBF	PRODUCTION
LTM4632EY#PBF	PRODUCTION
LTM4632IV#PBF	PRODUCTION
LTM4632IY	PRODUCTION
LTM4632IY#PBF	PRODUCTION
Nov 4, 2020 - 20_0319 Notification of additional Assembly Location, ASE Korea for LTM4632
		PCN20_0319_Form Material_Report Qualification Results Summary Other
LTM4632EV#PBF	PRODUCTION
LTM4632EY#PBF	PRODUCTION
LTM4632IV#PBF	PRODUCTION
LTM4632IY	PRODUCTION
LTM4632IY#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
LTM4632EV#PBF	PRODUCTION
LTM4632EY#PBF	PRODUCTION
LTM4632IV#PBF	PRODUCTION
LTM4632IY	PRODUCTION
LTM4632IY#PBF	PRODUCTION
Nov 20, 2019 - 19_0219 LTM4632 Notification of Qualification of New Mold Compound and Substrate Change
		PCN19_0219_Form Material_Report Qualification Results Summary
LTM4632EV#PBF	PRODUCTION
LTM4632EY#PBF	PRODUCTION
LTM4632IV#PBF	PRODUCTION
LTM4632IY	PRODUCTION
LTM4632IY#PBF	PRODUCTION

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

Software Resources

Can't find the software or driver you need?

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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
Switching Regulators & Controllers 2
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

Tools & Simulations

LTspice 1

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

Models for the following parts are available in LTspice:

LTM4632

LTpowerCAD 1

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

Design tools for the following parts are available in LTpowerCAD:

LTM4632

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.

Reference Designs

HTG-AI & Prime PCIe Express Platform - Top View

Versal PRIME /AI PCI Express Platform

View Detailed Reference Design

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