132W 4-Switch Synchronous Buck-Boost CC-CV Supercapacitor Charging Circuit Reference Design


Design files


PMP20660 is a synchronous 4-switch buck-coost converter reference design using the LM5175 controller IC. The converter accepts an input voltage of 5Vin to 13Vin and provides a constant-voltage/constant-current output of 12Vout and approximately 11A. The reference design is built on the LM5175EVM-HP evaluation board which is a 6-layer FR-4 PCB, with 2 oz. copper for each of the six layers.

  • Synchronous operation for high efficiency
  • Constant current and constant voltage control
  • Output voltage can be above or below input voltage
  • Enables quick charging of supercapacitors
Output voltage options PMP20660.1
Vin (Min) (V) 5
Vin (Max) (V) 13
Vout (Nom) (V) 12
Iout (Max) (A) 11
Output Power (W) 132
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck Boost- 4 Switch

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.

TIDUDX3.PDF (1992 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

TIDCE36.ZIP (352 K)

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

TIDRTX0.PDF (1188 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck-boost & inverting controllers (external switch)

LM517542V Wide Vin 4-Switch Synchronous Buck-Boost Controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD16414Q525-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.6 mOhm

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
* Test report PMP20660 Test Results Nov. 30, 2017

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