PMP11399

PMBus Power System for Enterprise Ethernet Switches Reference Design

PMP11399

Design files

Overview

PMP11399 is a complete PMBus power system for 3 ASIC/FPGA cores, DDR3 core memory, VTT termination, and auxiliary voltages commonly found on high-performance Ethernet Switches. The hardware is accompanied by a GUI that allows the user to perform real-time configuration and monitoring of the power supplies.

Features
  • 12V / 300W system power solution with nine point-of-load buck converters
  • PMBus communication configures hot-swap, SWIFT buck converters, multiphase PWM controller, and power sequencer/supervisor
  • High-density power conversion utilizing Inductor On Top of IC layouts
  • Voltage margining through PMBus and PWM
  • UCD90240 GPIs allow for event-based power supply control
Output voltage options PMP11399.1 PMP11399.10 PMP11399.11 PMP11399.2 PMP11399.3 PMP11399.4 PMP11399.5 PMP11399.6 PMP11399.7 PMP11399.8 PMP11399.9
Vin (Min) (V) 10.8 10.8 10.8 10.8 10.8 10.8 10.8 10.8 10.8 10.8 10.8
Vin (Max) (V) 13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2
Vout (Nom) (V) 12 1 .6 5 3.3 5 3.3 1.5 1.2 1 .85
Iout (Max) (A) 25 30 6 1 .08 10 14 8 12 15 15
Output Power (W) 300 30 3.6 5 .264 50 46.2 12 14.4 15 12.75
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC DC DC DC DC DC DC DC DC
Topology Hot Swap Buck- Multiphase^Buck- Synchronous Buck- Synchronous Buck- Synchronous Linear Regulator Buck- Synchronous Buck- Synchronous Buck- Synchronous Buck- Synchronous Buck- Synchronous Buck- Synchronous

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

TIDUBM5.PDF (3681 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRKS8.PDF (1105 K)

Detailed schematic diagram for design layout and components

TIDRKS9.PDF (287 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRKT0.PDF (531 K)

Detailed overview of design layout for component placement

TIDRKT1.ZIP (9337 K)

Files used for 3D models or 2D drawings of IC components

Products

Includes TI products in the design and potential alternatives.

Linear & low-dropout (LDO) regulators

TPS71550-mA 24-V ultra-low-IQ low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML
Buck controllers (external switch)

TPS536474-Phase, D-CAP+TM Step-Down Buck Controller with NVM and PMBus Interface for ASIC

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS535131.5-V to 18-V, 8-A synchronous SWIFT™ buck converter

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS535151.5-V to 18-V, 12-A synchronous SWIFT™ buck converter

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS544C254.5-V to 18-V, 30-A synchronous SWIFT™ buck converter with PMBus and frequency sync

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS548D221.5-V to 16-V, 40-A synchronous SWIFT™ buck converter with differential remote sense

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS549A201.5-V to 20-V, 15-A synchronous SWIFT™ buck converter with PMBus

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS621533–17V 1A Step-Down Converter in 3x3 QFN package

Data sheet: PDF | HTML
Current sense amplifiers analog output

INA194-16 to 80V, 500kHz current sense amplifier

Data sheet: PDF | HTML
DDR memory power ICs

TPS53317A0.9V-6V Input, 6-A Output, D-CAP+ Mode, SWIFT Synchronous Step-Down Converter for DDR VTT

Data sheet: PDF | HTML
N-channel MOSFETs

CSD17570Q5B30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.92 mOhm

Data sheet: PDF | HTML
Power stages

CSD95372BQ5M60A Synchronous Buck NexFET™ Smart Power Stage

Data sheet: PDF | HTML
eFuses & hot swap controllers

LM25066IA2.9-V to 17-V hot swap controller with I2C and PMBus - increased monitoring accuracy and intel node

Data sheet: PDF

Technical documentation

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Type Title Date
* Test report PMP11399 Test Results Mar. 16, 2016
Technical article Building blocks of power Mar. 23, 2016

Related design resources

Reference designs

REFERENCE DESIGN
PMP10896 Complete PMBus Power System for Enterprise Ethernet Switches Reference Design

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