Universal AC-DC Non-isolated Buck Converter, 85VAC-264VAC Input, 2.34W Output (18V / 0.1A)


Design files


The power supply employs non-isolated Buck converter to convert universal AC input voltage (85Vac to 265Vac) to a 18V/130mA DC output with UCC28880. MOSFET has been integrated in UCC28880. It optimizes circuit BoM cost and solution size.

  • Universal AC input: 85VAC-264VAC
  • Integrated MOSFET
  • Cost effective
  • Minimal external components
Output voltage options PMP9073.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 18
Iout (Max) (A) .13
Output Power (W) 2.34
Isolated/Non-Isolated Non-Isolated
Input Type AC
Topology Buck- Non Sync
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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

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TIDU657.PDF (1374 K)

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


Detailed schematic diagram for design layout and components


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TIDC777.ZIP (182 K)

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


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Flyback controllers

UCC28880High voltage switcher for Non-isolated AC/DC Conversion

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP9073 Test Results Nov. 24, 2014

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