Class 3 Non-isolated Floating Buck Converter for PoE PD Reference Design
PMP40355
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Description & Features

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Key Document

Description

The PMP40355 reference design is designed for evaluating a non-isolated 13W buck  PD converter system using the IEEE 802.3at PoE interface and dc/dc controller TPS23753A. The converter is capable of supporting the 13W maximum IEEE 802.3at power requirements with low BOM cost. It presents good efficiency, load regulation and related electrical performance.

Features
  • Compliant with IEEE 802.3at standard
  • Enhanced ESD ride-through capability
  • Combined PoE PD and DC-DC controller
  • Non-isolated configuration
  • Independent feedback path with temperature immunity

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP40355.1
(Output Voltage 1)
Vin (Min) (V)36
Vin (Max) (V)57
Vout (Nom) (V)12
Iout (Max) (A)1.5
Output Power (W)18
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Upside Down

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
CSD19537Q3  100V, N ch NexFET MOSFETâ„¢, single SON3x3, 14.5mOhm  MOSFETs  Sample & Buy Not Available
TLV431A  1% accuracy, low-voltage, adjustable precision shunt regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
TPS23753A  IEEE 802.3-2005 PoE interface and Isolated Converter controller with Enhanced ESD Ride-Through  Power over Ethernet (PoE) ICs  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD19537Q3 VSON-CLIP (DQG)| 8 Download Download
TLV431A Download Download
Download Download
Download -
Download Download
Download -
Download Download
TPS23753A Download Download

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 703 20 Dec 2017
Design files (6)
Title Type Size (KB) Date
ZIP 456 20 Dec 2017
ZIP 29 20 Dec 2017
PDF 1010 20 Dec 2017
PDF 135 20 Dec 2017
PDF 34 20 Dec 2017
PDF 149 20 Dec 2017

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