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STEVAL-TSP006V2

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Power over Ethernet - PD converter with 3.3 V 3 A output, standard IEEE 802.3af compliant

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Parameter NameParameter Value
Target ApplicationDC-DC Topologies
Core ProductPM8800A
ECCN USEAR99
ECCN EUNEC
Packing TypeNot Applicable
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameCARD

This document focuses on a reference design for a simple, low cost 3.3 V 3 A flyback converter based on the PM8800A device.


The PM8800A is a highly integrated device embedding an IEEE 802.3af compliant “Powered Device” (PD) interface together with a PWM controller.


It can be successfully used in all low power, low cost PoE applications.

Key features
  • IEEE 802.3af compliant PD interface
  • Works with power supplied from Ethernet LAN cables or from local auxiliary sources
  • Line input voltage range: 40 Vdc to 60 Vdc, output voltage: 3.3 Vdc ± 5%
  • Output current: 3 A
  • Peak-to-peak output ripple: 30 mV
  • Efficiency DC-DC full-load: > 83%
  • Efficiency overall peak: > 80%
  • Transient response ΔVoutpk-pkto 50% load step: < 400 mVpp
  • ΔV in load line case: < 0.5%