TPS53515 Low Power DDR Memory Power Supply Reference Design


Design files


The PMP20026 reference design provides an efficient low power solution for DDR4 memory.  The power supply is powered from a 12V source and regulates the output to 1.2V at up to 6A.  The TPS53515 operates in a single phase buck mode at 500kHz that allows for very high efficiency conversion.  The solution size is25mm x 15mm.  The peak effciency approaches 90% at 5A.  At very light loads the efficiency is still above 40%.

  • 12VIN to 1.2VOUT at 6A
  • Peak efficiency ~89%
  • DCAP3 Mode for Fast Transient Response
  • Bandwidth >100kHz
  • Load Regulation <2%
Output voltage options PMP20026.1
Vin (Min) (V) 10.8
Vin (Max) (V) 13.2
Vout (Nom) (V) 1.2
Iout (Max) (A) 6
Output Power (W) 7.2
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology 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.


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


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


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

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

Data sheet: PDF | HTML
N-channel MOSFETs

CSD16410Q5A25-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 12 mOhm

Data sheet: PDF

Technical documentation

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Type Title Date
* Test report PMP20026 Test Results Jan. 27, 2016

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