PMP11399

PMBus Power System for Enterprise Ethernet Switches Reference Design

Design files

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

Communications equipment

Fixed data center switch

Enterprise systems

AI accelerator module/card

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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.

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Test report — PMP11399

TIDUBM5.PDF (3682 KB)

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

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Assembly drawing — PMP11399

TIDRKT0.PDF (531 KB)

Detailed overview of design layout for component placement

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Bill of materials (BOM) — PMP11399

TIDRKS9.PDF (288 KB)

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

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CAD/CAE symbol — PMP11399

TIDRKT1.ZIP (9337 KB)

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

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Schematic — PMP11399

TIDRKS8.PDF (1106 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Linear & low-dropout (LDO) regulators

TPS715 — 50mA 24V ultra-low-IQ low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML

Sequencers

UCD90240 — 24-Rail PMBus Power Sequencer and Power Manager

Data sheet: PDF | HTML

Analog current-sense amplifiers

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

Data sheet: PDF | HTML

Multi-channel ICs (PMICs)

TPS53317A — 0.9V-6V Input, 6-A Output, D-CAP+ Mode, SWIFT Synchronous Step-Down Converter for DDR VTT

Data sheet: PDF | HTML

eFuses & hot swap controllers

LM25066IA — 2.9-V to 17-V hot swap controller with I2C and PMBus - increased monitoring accuracy and intel node

Data sheet: PDF

AC/DC & DC/DC converters (integrated FET)

TPS544C25 — 4.5-V to 18-V, 30-A synchronous SWIFT™ buck converter with PMBus and frequency sync

Data sheet: PDF | HTML

AC/DC & DC/DC converters (integrated FET)

TPS53513 — 1.5-V to 18-V, 8-A synchronous SWIFT™ buck converter

Data sheet: PDF | HTML

AC/DC & DC/DC converters (integrated FET)

TPS62153 — 3–17V 1A Step-Down Converter in 3x3 QFN package

Data sheet: PDF | HTML

Si power stages

CSD95372BQ5M — 60A Synchronous Buck NexFET™ Smart Power Stage

Data sheet: PDF | HTML

AC/DC & DC/DC converters (integrated FET)

TPS549A20 — 1.5-V to 20-V, 15-A synchronous SWIFT™ buck converter with PMBus

Data sheet: PDF | HTML

AC/DC & DC/DC converters (integrated FET)

TPS548D22 — 1.5-V to 16-V, 40-A synchronous SWIFT™ buck converter with differential remote sense

Data sheet: PDF | HTML

MOSFETs

CSD17570Q5B — 30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.92 mOhm

Data sheet: PDF | HTML

AC/DC & DC/DC controllers (external FET)

TPS53647 — 4-Phase, D-CAP+TM Step-Down Buck Controller with NVM and PMBus Interface for ASIC

Data sheet: PDF | HTML

AC/DC & DC/DC converters (integrated FET)

TPS53515 — 1.5-V to 18-V, 12-A synchronous SWIFT™ buck converter

Data sheet: PDF | HTML

Technical documentation

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	Type	Title		Date
*	Test report	PMP11399 Test Results		Mar 16, 2016
	Technical article	Building blocks of power	PDF \| HTML	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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