AC Input, 5V/3.3V2A Cascaded Power Supply Reference Design

(ACTIVE) PMP4472

Description & Features

Technical Documents

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Key Document

Description

The PMP4472 is a power reference design with a high AC input, 5Vout, followed by a DC isolated
output of 3.3V at 2A. It implements a high efficiency controller UCC28740 to provide 5V bus voltage and a step-Down Converter TPS54228.The design achieves good line and load regulation as well as  good dynamic response and low output ripple voltage.

Features
  • Isolated Flyback and Buck converter
  • 2 outputs include 5V Bus voltage
  • Good line and load regulation
  • Good dynamic response
  • Low output ripple voltage

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP4472.1
(Output Voltage 1)
PMP4472.2
(Output Voltage 2)
Vin (Min) (V)1985
Vin (Max) (V)2425
Vout (Nom) (V)53.3
Iout (Max) (A)1.52
Output Power (W)7.56.6
Isolated/Non-IsolatedIsolatedNon-Isolated
Input TypeACDC
TopologyFlyback- Quasi ResonantBuck- Synchronous

TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TL431A  Adjustable Precision Shunt Regulator  Voltage Reference  Sample & Buy Not Available
TPS54228  4.5V to 18V Input, 2-A Synchronous Step-Down Converter with Eco-mode™   Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
UCC28740  Constant-Voltage, Constant-Current Flyback Controller Using Opto-Coupler Feedback  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 348 22 Sep 2015 328
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 198 22 Sep 2015 19
PDF 168 22 Sep 2015 28
PDF 358 22 Sep 2015 66


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