Inverting Buck Boost Power Module Reference Design


Design files


The PMP10638 reference design is a -5.2V 4A output power supply using SIMPLE SWITCHER® LMZ31710 Power Module. The reference design takes advantage of the small package and high level integration of LMZ31710 to achieve small solution size. It can support -5.2V 4A output power from 3.1V-3.3V input range. The working frequency is set to 1Mhz and very small ripple voltage.

  • LMZ3710 power module with integrated inductor
  • 3.1V to 3.5V input , -5.2V 4A output
  • Less than 15 components
  • 1Mhz working frequency, 88% peak efficiency
  • This circuit board is tested, and the design files and test report are included
Output voltage options PMP10638.1
Vin (Min) (V) 3.1
Vin (Max) (V) 3.5
Vout (Nom) (V) -5.2
Iout (Max) (A) 4
Output Power (W) 20.8
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck Boost- Inverting

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.

TIDUAJ9.PDF (1396 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


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


Includes TI products in the design and potential alternatives.

Buck modules (integrated inductor)

LMZ317102.95V to 17V, 10A Step-Down Power Module with Current Sharing in 10x10x4.3mm QFN Package

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
* Test report PMP10638 Test Results Sep. 08, 2015

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