336-W Auxless AC/DC power supply reference design with 80 PLUS platinum compatible performance


Design files


This reference design is an AC/DC power supply design with critical conduction mode (CRM) PFC and half-bridge LLC series resonant converter that provides 24 V, 240-W continuous, 336-W peak output from a universal input AC voltage (90 VAC to 264 VAC). This design uses UCC28056 CRM/DCM PFC controller, UCC256404 enhanced LLC controller, and UCC24612-2 synchronous rectifier controller with burst mode enabled for low standby power losses. The design achieves 87 mW at 115 VAC and 124 mW at 230 VAC, and it also achieves 93.4% peak efficiency at 115-VAC input and 95.3% peak efficiency at 230-VAC input. The efficiency and power factor numbers also meet both 115-V and 230-V internal 80 PLUS Platinum specifications and DoE level VI requirements.

  • 24-V output with 240-W continue and 336-W peak output power capability
  • 80 PLUS Platinum compatible performance
  • Low, no-load power consumption without using additional auxiliary supply
  • 93.4% peak efficiency at 115-VAC input and 95.3% peak efficiency at 230-VAC input
Output voltage options PMP22087.1
Vin (Min) (V) 90
Vin (Max) (V) 264
Vout (Nom) (V) 24
Iout (Max) (A) 14
Output Power (W) 336
Isolated/Non-Isolated Isolated
Input Type AC
Topology Boost- PFC^Half Bridge- Resonant
?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Important note
This reference design replaces the now obsolete PMP5141 85-VAC to 265-VAC input 24-V/240-W output 90% efficient PFC + LLC reference design.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDT113A.PDF (6326 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


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components

TIDCFI8.ZIP (2013 K)

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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC24612High-frequency multi-mode synchronous rectifier controller

Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)

UCC256404LLC resonant controller with ultra-low power, ultra-quiet standby operation and high voltage startup

Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)

UCC280566-pin high performance CRM/DCM PFC controller

Data sheet: PDF | HTML

CSD19502Q5B80-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 4.1 mOhm

Data sheet: PDF | HTML
Shunt voltage references

ATL432LIHigh-bandwidth, low-IQ programmable shunt regulator (pinout: RKA)

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 336-W Auxless AC/DC Power Supply Reference Design With 80 PLUS Platinum (Rev. A) Nov. 27, 2019

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. ​​​​​​​​