High Efficiency, Compact Dual 10A Digital Point-of-Load Reference Design for 5V and 7V Applications


Design files


The PMP20481 reference design pairs digital TPS40425 controller with digital buck driver UCD7242 for a dual 10A point-of-load in a tiny 0.625"x1.075" solution size (15.9mmx27.3mm). UCD7242 fully integrates a dual 10A synchronous buck power driver into a small 6mmx6mm QFN package. The PMP20481 demonstrates a  high efficiency point-of-load with excellent thermal performance for high output applications.

  • 8V to 14V in, 7V/5A and 5V/5A out
  • Peak efficiency 96.1% at 7Vout, 300kHz
  • Excellent thermal performance: 25C temperature rise at 7V/5A and 5V/5A natural convection
  • Total solution size: 0.625" x 1.075" (15.9mm x 27.3mm)
  • PMBus enabled margining and sequencing
Output voltage options PMP20481.1 PMP20481.2
Vin (Min) (V) 8 8
Vin (Max) (V) 14 14
Vout (Nom) (V) 7 5
Iout (Max) (A) 5 5
Output Power (W) 35 25
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology 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.

TIDUDZ6.PDF (2581 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


Detailed overview of design layout for component placement

TIDCE70.ZIP (155 K)

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)

TPS40425Dual Output, 2-Phase, Stackable PMBUS Synchronous Buck Driverless Controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital power control drivers & powertrain modules

UCD7242Digital Dual Synchronous Buck Power Driver

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
* Test report PMP20481 Test Results Dec. 07, 2017

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