Power Over Ethernet

Quickly design efficient, EMI compliant Power over Ethernet systems with our integrated PD and PSE devices.

Powering the Future of Power over Ethernet (PoE)

Explore the latest IEEE PoE standard and how our new PoE devices simplify adding PoE to any Ethernet connected device.


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Power Over Ethernet PD and PSE Solutions

Review how Silicon Labs' new 802.3bt portfolio simplifies 90 W PoE with industry leading power sourcing equipment (PSEs) and powered devices (PDs).

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  Powered Devices PSE Controllers
IEEE Standard 802.3af, 802.3at, 802.3bt 802.3af, 802.3at, 802.3bt
Maximum Power Output 15 W class 1-3
30 W class 4
90 W class 5-8
15 W class 1-3
30 W class 4
90 W class 5-8
DC DC Converter Integrated dc dc controller Integrated dc dc controller
Internal/External FETs Internal or External External
Smallest Package Size 4x4 mm QFN 5x7 mm QFN
  • Buck
  • Flyback
  • Isolated Flyback
  • Mid-Span
  • End-Span
Featured Product Class 8 90 W Devices Single Port PSE
  Power Management
Coulomb Counting Yes
Lowest Quiescent Current  150
Output Voltage 1.7 - 5.2 V
Output Voltage Rails 3
Vdd Range 0.8 - 5.5 V
Temp Range -40 to 85 ºC
Package 3x3 QFN20
Featured Product EFP01 Power Management IC
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