3-Phase AC Input, Triple Output Bias Supply Reference Design
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Key Document


The PMP12082 is a bias supply reference design with 3-phase input (80VAC~280VAC) and triple outputs - 7V/1.4A, 3.3V/500mA, and 3.3V/300mA. UCC28701 primary side regulation controller is applied for a Cascode-MOSFET flyback converter with dual output windings. One winding supplies 7V/1.4A output with TPS259261 current limiter and 3.3V/500mA with TPS560200 pos-regulated Buck converter stage.The other output winding supplies 3.3V/300mA through a TLV1117-33 LDO.

  • 80VAC to 280VAC three-phase input, 7V/1.4A, 3.3V/500mA and 3.3V/300mA outputs
  • Allow two line drop - single phase AC input
  • Cascode flyback with primary side regulation controller
  • 2" x 5.4" board dimension
  • Test report available

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Schematic/Block Diagram

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Design Files

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(Output Voltage 1)
(Output Voltage 2)
(Output Voltage 3)
(Output Voltage 4)
Vin (Min) (V)808064
Vin (Max) (V)28828886
Vout (Nom) (V)753.33.3
Iout (Max) (A)
Output Power (W)
TopologyFlyback- DCMFlyback- DCMBuck- SynchronousLinear Regulator

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS25926  4.5-V to 13.8-V, 30mΩ, 2-5A eFuse  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS560200  17V Input, 500mA Synchronous Step-Down Regulator in SOT-23 with Advanced Eco-Mode™  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
UCC28701  Constant-voltage, constant-current PWM with PSR, NTC option, and 0 mV cable compensation  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)
TPS25926 Download
TPS560200 Download Download
UCC28701 Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 2390 20 Dec 2016
Design files (6)
Title Type Size (KB) Date
ZIP 1120 20 Dec 2016
ZIP 678 20 Dec 2016
PDF 1001 20 Dec 2016
PDF 147 20 Dec 2016
PDF 143 20 Dec 2016
PDF 129 20 Dec 2016

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