Class 3,Cost and Efficiency Optimized Buck Converter for PoE Applications Reference Design

(ACTIVE) PMP4679

Description & Features

Technical Documents

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Description

This reference evaluation module, featuring the TPS23750 PoE DC-to-DC controller, is used for class 3 PoE applications where low-cost and high efficiency are required.

The module accepts input voltages between 37-57V ac and output 12V at 0.95A.

Features
  • Nonisolated upside-down buck
  • 12V at 0.95 A output
  • Low cost design with high efficiency (88%)
  • Uses TPS23750 IEEE802.3af PD controller with integrated DC/DC controller
  • Small board size
  • This circuit design is fully functional, tested and recommended for new designs.

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


  




Parametrics
 PMP4679.1
(Output Voltage 1)
Vin (Min) (V)37
Vin (Max) (V)57
Vout (Nom) (V)12
Iout (Max) (A).95
Output Power (W)11.4
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Upside Down
POE

TI Devices (2)

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
TLV431  Low-Voltage Adjustable Precision Shunt Regulator  Voltage Reference  Sample & Buy Not Available
TPS23750  IEEE 802.3af PD Controller with Integrated DC/DC  Power Over Ethernet (PoE)/LAN Solutions  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
PDF 410 16 Sep 2013 177
Design files (2)
Title Abstract Type Size (KB) Date Views
PDF 110 16 Sep 2013 43
PDF 57 16 Sep 2013 135


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