3.5 to 36 Vin 6.5 Vout @ 1.2-A Synchronous 4-Switch Buck-Boost Converter Reference Design


Design files


PMP10708 is a 7.8W 4-switch buck-boost converter using the LM5175 controller IC. The design accepts an input voltage of 3.5Vin to 36Vin and provides an output of 6.5Vout capable of supplying 1.2A of current to the load. The design can operate as low as 3V during start-stop or other line transient conditions.

  • Very small solution size
  • Cycle-by-Cycle current limit
  • Sync to external clock
  • Input and output current limit option
  • Synchronous for maximum efficiency
  • Reverse polarity and 3Vin transient operation
Output voltage options PMP10708.1
Vin (Min) (V) 3.5
Vin (Max) (V) 36
Vout (Nom) (V) 6.5
Iout (Max) (A) 1.2
Output Power (W) 7.8
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.

TIDUAQ3.PDF (1377 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


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


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

TIDRHA8.PDF (1178 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)

LM5175-Q142-V wide VIN 4-switch synchronous buck-boost controller, AEC-Q100 qualified

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Test report PMP10708 Test Results Sep. 23, 2015

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