High-current 360-A static / 600-A peak core PMBus voltage 12-phase reference design for ASICs
PMP21887
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

This reference design is a a 12-phase power management bus (PMBus) buck converter powering datacenter hardware accelerator, enterprise switch and router application-specific integrated circuit (ASIC) core rails. It provides 360 A of continuous current and 600 A of peak current at 0.85-V nominal voltages. It uses twelve  CSD95480 common footprint 70-A smart power stages. Design includes an on-board high speed dynamic load for testing to stringent dynamic load response requirements of high speed ASICs. The reference design includes a test report showing these capabilities and enables a cut-and-paste design for powering high-current ASIC core rails with PMBus. 

Features
  • Uses twelve CSD95480 common footprint 70-A smart power stages
  • Fusion Digital Power Designer GUI enables easy prototyping through PMBus and manufacturing script generation
  • DCAP+ control mode enables the fastest load transient response and output capacitor (including ceramic cap) reduction
  • High speed on board dynamic load for testing to stringent dynamic load requirements
  • Tested, cut-and-paste design for powering high-current ASIC core rails

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files


Parametrics
 PMP21887.1
(Output Voltage 1)
Vin (Min) (V)10
Vin (Max) (V)14
Vout (Nom) (V).85
Iout (Max) (A)600
Output Power (W)510
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Multiphase

TI Devices (4)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD95480RWJ  70A Synchronous Buck NexFET™ Smart Power Stage in an Industry Standard Footprint  MOSFETs  Not Available Not Available
TPS536C7  Dual-channel D-CAP+™, PMBus (N+M ≤ 12 phases) step-down, multiphase PWM controller  Step-down (buck) regulators  Not Available View Design Kits & Evaluation Modules
TPS62163  3V-17V 1A Step-Down Converters with DCS-Control™  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS732  250-mA, high-accuracy, ultra-low-dropout voltage regulator with reverse current protection & enable  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD95480RWJ VQFN-CLIP (RWJ)| 41 Download
TPS62163 Download Download
TPS732 Download
Download
Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guide (1)
Title Type Size (KB) Date
PDF 3890 14 Oct 2020
Design files (6)
Title Type Size (KB) Date
ZIP 3494 18 Oct 2020
ZIP 4194 18 Oct 2020
PDF 15210 18 Oct 2020
PDF 1074 18 Oct 2020
PDF 350 18 Oct 2020
PDF 1135 18 Oct 2020
Related Tools & Software

Software development (1)

Name Part Number Software Type
Digital Power Software  FUSION_DIGITAL_POWER_DESIGNER  Application software & framework 


Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles