High Power Small Form Factor Synchronous Buck To Output 12V@15A Reference Design


Design files


The PMP10852 reference design uses the LM5117, CSD18563 for the high side MOSFET and CSD18532 (x2) for the low side MOSFETs.  PMP10852 takes input voltages between 27V to 41V and outputs 180W(12V @15A).  The size is very small, total area is 1,200mm2 (30mm x 40mm) solution size. The design is ~95% efficient at full load.

  • High Power(180W)
  • Wide Vin range (27V-41V)
  • Small size(1200mm2
  • 95% efficient
Output voltage options PMP10852.1
Vin (Min) (V) 27
Vin (Max) (V) 41
Vout (Nom) (V) 12
Iout (Max) (A) 15
Output Power (W) 180
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous
Communications equipment
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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.

TIDU984.PDF (2005 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


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


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)

LM51175.5-65V Wide Vin, Current Mode Synchronous Buck Controller with Analog Current Monitor

Data sheet: PDF | HTML
N-channel MOSFETs

CSD18532Q5B60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 3.2 mOhm

Data sheet: PDF | HTML
N-channel MOSFETs

CSD18563Q5A60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 6.8 mOhm

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP10852 Test Results May 13, 2015
Technical article Power Tips: Voltage mode or current mode? Oct. 02, 2015

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