Universal AC/DC Buck Converter Reference Design with PSR Controller PMP20345 (ACTIVE)

Description & Features

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Key Document

Description

The PMP20345 reference design uses Buck converter to convert universal AC input voltage (102Vac to 265Vac) to a 50V/190mA DC output with UCC28700 primary side regulated controller. Peak efficiency of this design is over 87.5%.

Features
  • Universal AC input to 50V/190mA
  • Single-layer PCB
  • 87.5% peak efficiency
  • Less than 35°C temperature rise at room temperature

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP20345.1
(Output Voltage 1)
Vin (Min) (V)102
Vin (Max) (V)264
Vout (Nom) (V)50
Iout (Max) (A).19
Output Power (W)9.5
Isolated/Non-IsolatedNon-Isolated
Input TypeAC
TopologyBuck- Non Sync

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28700  Constant-Voltage, Constant-Current PWM 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)
UCC28700 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 647 11 Dec 2017
Design files (6)
Title Type Size (KB) Date
ZIP 184 11 Dec 2017
ZIP 424 11 Dec 2017
PDF 282 11 Dec 2017
PDF 78 11 Dec 2017
PDF 85 11 Dec 2017
PDF 86 11 Dec 2017

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