High Efficiency, Power Density 4-Phase 1V/120A PMBus Interface Reference Design for ASIC Processors

(ACTIVE) PMP11312

Description & Features

Technical Documents

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Key Document

Description

The PMP11312 reference design is a 4-phase PMBus converter for high current ASIC core rail regulation. It utilizes TPS53647 4-phase controller for 120A high current rail, which employs  DCAP+ control for fast transient response and TI's proprietary AutoBalance for tight steady and dynamic phase-to-phase current balance.  TPS53647 drives TI NexFET smart power stages for high power density and efficiency. Optimized layout and improved board stack-up (8-layer, 2oz-copper) achieve higher efficiency and higher power density. PMBus capability and on-board NVM enable easy design, configuration, and customization, with telemetry of output voltage, current, temperature, and power.

Features
  • Compact modular layout in 0.95"x2.3" (24.1mmx58.4mm)
  • High efficiency 91.7% at 1V/120A, 300kHz, 12Vin
  • Excellent thermal performance (53C FET temperature at full load with 200LFM air flow)
  • Combined ripple and transient response around +/-1.7%
  • Full PMBus telemetry of output voltage, current, power and temperature

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP11312.1
(Output Voltage 1)
Vin (Min) (V)7
Vin (Max) (V)13.2
Vout (Nom) (V)1
Iout (Max) (A)120
Output Power (W)120
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Multiphase
Buck- Synchronous
Designed forASIC

TI Devices (2)

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
CSD95372BQ5M  60A Synchronous Buck NexFET™ Smart Power Stage  Power MOSFET  Sample & Buy Not Available
TPS53647  4-Phase, D-CAP+TM Step-Down Buck Controller with NVM and PMBus Interface for ASIC  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1373 07 Oct 2015 23
Selection guides (1)
Title Abstract Type Size (KB) Date Views
PDF 974 10 Nov 2015 611
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 240 07 Oct 2015 9
PDF 893 07 Oct 2015 18
PDF 116 07 Oct 2015 11
PDF 235 07 Oct 2015 33


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