Space-optimized DC/DC Inverting Power Module Reference Design with Minimal BOM Count


Design files


The TIDA-00808 is a simple DC/DC inverting power supply reference design for industrial applications. It takes a wide input voltage between 4.5V and 55V and generates a negative 5V @ 1.75A output with 86% peak efficiency. Since this design is inverting, the maximum output current increases as the input voltage increases. The reference design features the LMZ36002 SIMPLE SWITCHER DC/DC step down power module for compact solution size and simplicity. The board dimension is 76.2 x 76.2 mm (3 x 3 inch) with the solution size of only 30.607 x 20.828 mm (1.205 x 0.82 inch).

  • Input: 4.5V to 55V
  • Output: -5V @ 1.75A
  • Peak efficiency 86%
  • Simple design that features integrated shielded inductor and requires minimum external components
  • Compact solution size, < 637.5 mm2     
  • Tested DC/DC switching power supply sub-circuit
??image.gallery.download_en_US?? View video with transcript Video

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.

TIDUBF4.PDF (1328 K)

Reference design overview and verified performance test data


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.

Power modules (integrated inductor)

LMZ342024.5V to 42V, 2A Step-Down Power Module in QFN Package

Data sheet: PDF | HTML
Power modules (integrated inductor)

LMZ360024.5V to 60V, 2A Step-Down Power Module in QFN Package

Data sheet: PDF | HTML

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide TIDA-00808 Test Results Jan. 20, 2016

Related design resources

Reference designs

PMP9380 Synchronous Inverting Buck Converter Application - Reference Design

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​