85-318Vin, 15Vout, 1Aout, AC-DC Buck Converter Reference Design


Design files


The PMP10833RevA reference design is a compact and thermally efficient design intended to step down a wide range of AC inputs.  This design incorporates the UCC28C42, a current-mode PWM controller, with controllable frequencies up to 1Mhz.

  • With an input of 230VAC, at a full load of 1A, efficiency is greater than 82%
  • Compact board size with a length of approximately 67mm
  • Good thermal performance
  • AC input range of 85VAC - 318VAC providing an output of 15V and 1A.
  • Test report available
Output voltage options PMP10833.1
Vin (Min) (V) 85
Vin (Max) (V) 318
Vout (Nom) (V) 15
Iout (Max) (A) 1
Output Power (W) 15
Isolated/Non-Isolated Non-Isolated
Input Type AC
Topology Buck- Non Sync

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.

TIDUAC2.PDF (1246 K)

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

TIDRG53.PDF (125 K)

Detailed schematic diagram for design layout and components

TIDRG54.PDF (114 K)

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

TIDRG55.PDF (59 K)

Detailed overview of design layout for component placement


Includes TI products in the design and potential alternatives.

PWM controllers

UCC28C4220V, 1-A, BiCMOS Low current 8 pin PWM current mode controller

Data sheet document-pdfAcrobat PDF open-in-new 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 PMP10833 Test Results Jul. 17, 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. ​​​​​​​​