85VAC to 264VAC Input, 12V/500mA Output Bias supply Reference Design
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Key Document


The PMP20122 is a compact and thermally efficient design intended to step down a wide range of AC inputs (85VAC to 264VAC). This non-isolated buck design incorporates the UCC28710 PSR controller to provide a well regulated a 12V/500mA output. The PMP20122 board is designed with complete standard components (including magnetics).

  • 85VAC to 264VAC, 50/60Hz input to 12V/500mA output
  • Less than 35oC temperature rise on all parts
  • Utilize all standard components (including magnetics)
  • 1.6" x 2.96" board dimension designed for possible power upgrade
  • Test report available

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Schematic/Block Diagram

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Design Guide

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Design Files

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(Output Voltage 1)
Vin (Min) (V)90
Vin (Max) (V)264
Vout (Nom) (V)12
Iout (Max) (A).5
Output Power (W)6
Input TypeAC
TopologyBuck- Non Sync

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28710  Constant-voltage, constant-current PWM controller with primary-side regulation  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
UCC28710 Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1397 21 Nov 2016
Design files (6)
Title Type Size (KB) Date
ZIP 1446 21 Nov 2016
ZIP 391 21 Nov 2016
PDF 401 21 Nov 2016
PDF 50 21 Nov 2016
PDF 119 21 Nov 2016
PDF 80 21 Nov 2016

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