13W/30W 802.3af/at PoE PD and Integrated DC-DC Controller

  • Full support of both IEEE® Std. 802.3af-2005 and IEEE® Std. 802.3at-2009 power requirements
  • “2-Event” classification for 802.3at higher power PDs
  • Robust Type 2 PSE detector with proprietary digital filtering for line noise to eliminate false positives
  • IEC 61000-4-2/3/4/5/6 requirements for EMC Compliance
  • Integrated Surge Protection for 15kV/8kV System level ESD Compliance
  • Integrated DC-DC controller for exceptional EMI performance
  • Programmable DC current limit up to 720mA for 30W applications
  • Seamless support for local power, down to 9.5V
  • Implemented in robust 100V automotive process
  • Low Rds-on Hot-Swap FET (typical 0.8Ω)
  • Integrated Short-Circuit Protection
  • Over temperature protection
  • Industrial temperature range, -40°C to +85°C
  • 5×5 mm, 20 lead QFN Package, RoHS compliant


  • Pan, tilt and zoom (PTZ), security and web cameras
  • Voice over IP (VoIP) phones
  • Wireless LAN access points, WiMAX terminals
  • Point-of-sale (PoS) terminals, RFID terminals
  • Thin clients and notebook computers
  • Fiber-to-the-home (FTTH) terminals

Key Electrical Specifications

Vin(Min) Vin(Max) PoE PD Support Control  Topology Number of Output Rails High Voltage Isolation Package
9.5V 57V 802.3af&at HW Mode Flyback 1 External QFN-5×5-20L-0.9

Typical Application Diagram