PMP9738 Reference Design

Texas Instruments

High Density 200 A (255 A Peak) 6 Phase DC-DC Buck Converter with PMBus Interface Reference Design

Description

Advanced DCAP+ control is used to provide the high speed dynamic control needed for CPU: Memory and ASIC applications. Six high current synchronous power stages provide the high currents and low losses needed for these applications. Multi-phase also allows output ripple cancellation and effective higher bandwidth control for a given switching frequency. PMP9738 focuses on ease of electrical testing and ability to make changes on the fly" thru the PMBus interface. On board bias supplies and a high speed dynamic load round out the rich test interface."

Features
  • Multiple fully synchronous power stages for high currents and lowest lossesDCAP+ control for excellent step load response: SVID and PMBus interfacesOutput voltage: switching frequency: number of phases can be adjusted on the fly" through the PMBus interfaceFocus of evaluation board is on ease of electrical testing with almost all parts on top sideRich test interface including PMBus socket: 5V and 3.3V biases and high speed dynamic test loadSchematic: BOM: layout and Test Report focusing on thermal performance and load dynamics"
Applications
  • Edge router
  • Intra-DC interconnect (metro)
  • Inter-DC interconnect (long-haul
  • submarine)
  • Core router
  • Cell site gateway router
Product Categories
  • Power management

Parts

Part Number Name Companion Part

Bill Of Materials

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Schematic

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP9738 Gerber 14 Jan 2015 ZIP 918
PMP9738 PCB 14 Jan 2015 PDF 5686
PMP9738 Assembly Drawing 14 Jan 2015 PDF 395
PMP9738 BOM 14 Jan 2015 PDF 114
PMP9738 Schematic 14 Jan 2015 PDF 296