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 VIN Tied to INTVCC
  • 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
LTM4632
Ultrathin, Triple Output, Step-Down μModule Regulator for DDR-QDR4 Memory
QDR4 Memory Power μModule Regulator Output Efficiency vs Load Current Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

Technical Articles 2

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Hardware Ecosystem

Parts Product Life Cycle Description
DDR/QDR Memory Bus Termination 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
Digital Power System Managers 1
LTC2975
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTM4632

LTpowerCAD 1

LTspice

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

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

eval board
schematic 1
schematic 2
schematic 3
schematic 4
AD-JUPITER-EBZ

Software-Defined Radio

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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
      • ARM Cortex-A53 1.5 GHz
      • ARM Cortex-R5 500 MHz
      • Mali-400 MP2 graphic processor
      • Programmable logic 154 k
    • DDR4 – 2 GB (x32)
    • Boot source
      • SD card 3.0
      • Flash memory 128 MB
    • User Interfaces
      • USB 3.1 Gen 1 – Type C
        • Upstream Facing Port (UFP)
        • Downstream Facing Port (DFP)
        • USB 2.0 compatible
    • 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)
      • Power Sink 5V, 9V/3A
    • USB Type-C (data)
      • Power Sink 5V/3A
      • Power Source 5V/0.9 A
    • 802.3at POE compliant, 25.5 W Type2 (POE+)

Product Details

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

eval board
schematic 5
DC2367A

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

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Product Details

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.
AD-JUPITER-EBZ
Software-Defined Radio
AD-JUPITER-EBZ Board Photo Angle View AD-JUPITER-EBZ Board Photo Top View AD-JUPITER-EBZ Board Photo Back View AD-JUPITER-EBZ Block Diagram
DC2367A
LTM4632 Demo Board | Ultrathin Triple Output Buck μModule Regulator for DDR-QDR4 Memory, 3.6V ≤ VIN ≤ 15V, ±3A VDDQ/VTT, 10mA VREF
DC2367A - Demo Board Image

Reference Designs

HTG-AI & Prime PCIe Express Platform - Top View
HTG-AI & Prime PCIe Express Platform - Top View
HTG-AI & Prime PCIe Express Bottom
Versal VSL1 Power Tree for AI CORE VC1902 & Prime VM1802
HTG-VSL1 Circuits from the lab

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
HTG-VSL1
Versal PRIME /AI PCI Express Platform
HTG-AI & Prime PCIe Express Platform - Top View
HTG-AI & Prime PCIe Express Bottom
Versal VSL1 Power Tree for AI CORE VC1902 & Prime VM1802

Latest Discussions

2 Years Ago
RE: Burst mode for LTM4632
View related discussion on EngineerZone®

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