60A 2-Phase PMBus Synchronous Buck Converter Reference Design


Design files


This design is for a 60A 2-phase Synchronous Buck Converter, incorporating the TPS40428 PMBus driverless PWM controller and the CSD95372B Smart Power Stage. The design accepts a 10V to 14V input, and provides a 1V at 60A output. The PMBus design enables programming, configuration, control, sequencing, voltage margining, Adaptive Voltage Scaling (AVS), and accurate current, voltage and temperature monitoring of high-power ASIC power supplies in Enterprise Storage/NAS/SAN, Ethernet Switches, Optical Networks, and Base Stations.

  • 10V to 14V Input, 1V 60A Output
  • PMBus interface for programming, margining, AVS, and telemetry
  • 20mV pk-to-pk Output Voltage Ripple at 12VIN, 1VOUT/100A
  • 624mm² total power supply area
  • Less than 10W Power Loss at 60W Output Power
  • 86% Efficiency at 12VIN, 1Vout/60A
Output voltage options PMP10000.1
Vin (Min) (V) 10
Vin (Max) (V) 14
Vout (Nom) (V) 1
Iout (Max) (A) 60
Output Power (W) 60
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Multiphase

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.

TIDU774.PDF (954 K)

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


Detailed schematic diagram for design layout and components


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

TIDC904.ZIP (256 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Buck controllers (external switch)

TPS40428Dual Output, 2-Phase, Stackable PMBus Synchronous Buck Driverless Controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
Power stages

CSD95372BQ5M60A Synchronous Buck NexFET™ Smart Power Stage

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Test report PMP10000 Test Results Feb. 10, 2015

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by 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, see TI support. ​​​​​​​​