High efficiency scalable 3-phase 1V/90A PMBus power supply for ASIC core rails


Design files


The PMP10962 reference design is a 3-phase PMBus converter for high current ASIC core rail regulation. It employs  DCAP+ control for fast transient response and TI's proprietary AutoBalance for tight steady and dynamic phase-to-phase current balance. It drives three TI NexFET smart power stages for high power density and efficiency. It  easily scales-up/scales-down to meet a wide load range. PMBus capability and on-board NVM enable easy design, configuration, and customization, with telemetry of output voltage, current, temperature, and power.

  • Modular 1V/90A PoL in 1.8" by 1.1" size (45.7mm x28.6mm)
  • High efficiency 90% at 1V/90A, 500kHz, 10Vin
  • Accurate current reporting with CSD95372B (3% at 90A)
  • Combined ripple and transient response within +/-2%
  • Scalable 1, 2, 3 or 4 phase operation
  • Full PMBus telemetry of output voltage, current, power and temperature
Output voltage options PMP10962.1
Vin (Min) (V) 7
Vin (Max) (V) 13.2
Vout (Nom) (V) 1
Iout (Max) (A) 90
Output Power (W) 90
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Multiphase^Buck- Synchronous
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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.

TIDUAH4.PDF (1880 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


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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck controllers (external switch)

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

Data sheet: PDF | HTML
Power stages

CSD95372BQ5M60A Synchronous Buck NexFET™ Smart Power Stage

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP10962 Test Results Aug. 26, 2015

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