40W Synchronous ZETA Converter with Two Inductors Reference Design


Design files


This dual-inductor, 13.2V at 4A, synchronous ZETA converter achieves greater than 93% efficiency at full load. It is capable of 5A out for Vin greater than 10V. It utilizes all surface mount components, maintains a low temperature rise and is capable of high peak load transients.  See PMP9581 REVB for this design with a coupled inductor.

  • Fully synchronous ZETA converter
  • Efficiency approaches 94% at full load
  • Utilizes two separate inductors
  • Board length approaches 70 mm
  • Capable of 5A output with any input
  • Test report available
Output voltage options PMP9581_REVC.1
Vin (Min) (V) 6
Vin (Max) (V) 16
Vout (Nom) (V) 13.2
Iout (Max) (A) 3
Output Power (W) 39.6
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Other
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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.

TIDU894.PDF (2213 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRE00.PDF (123 K)

Detailed schematic diagram for design layout and components

TIDRE01.PDF (13 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDCA32.ZIP (207 K)

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


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
Test report PMP9581_REVC Test Results Apr. 08, 2015

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