100% Pb-Free Step-Down Regulator Delivering 1V at 34A Reference Design


Design files


PMP10770 incorporates the TPS53219A and CSD87384M, which are the Green alternative to the TPS53355 30A dc/dc converter, and are 100% Pb-free. The design is for 10V-14V input, 1Voutput at 34A current with  83% efficiency at full load.

  • 100% Pb free
  • Green alternative to TPS53355
  • 500KHz switching frequency
  • 83% efficiency at full load of 34A
  • Design length of 50mm
  • 15.4mV output voltage ripple at 12VIN, and full load
Output voltage options PMP10770.1
Vin (Min) (V) 8
Vin (Max) (V) 14
Vout (Nom) (V) 1
Iout (Max) (A) 34
Output Power (W) 34
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous
?? 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.

TIDUA17.PDF (1060 K)

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

TIDRF17.PDF (116 K)

Detailed schematic diagram for design layout and components

TIDRF18.PDF (113 K)

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

TIDRF19.PDF (48 K)

Detailed overview of design layout for component placement


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


Includes TI products in the design and potential alternatives.

Buck controllers (external switch)

TPS53219A3-V to 28-V, 20-A, synchronous D-CAP buck controller with Eco Mode

Data sheet: PDF | HTML
Power blocks

CSD87384M30-V, N channel synchronous buck NexFET™ power MOSFET, 5 mm x 3.5 mm LGA, 30 A

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
* Test report PMP10770 Test Results Jun. 04, 2015

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. ​​​​​​​​