Si3472/Si3473 PoE PSE Controllers

Skyworks Solutions Inc. Si3472/Si3473 PoE PSE Controllers are fully programmable, 50V to 57V power sourcing equipment (PSE) controllers. The devices are used for IEEE 802.3bt 2-pair, Type 3 applications. As a 2-pair, Type 3 PSE controllers, Si3473/72 are compatible with IEEE 802.3af and IEEE 802.3at powered device (PD) loads. Designed for use in PSE endspans (switches) and midspans (injectors), the Si3473/72 integrates eight (Si3473) or four (Si3472) independent ports. Each has IEEE-required detection and classification functionality.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Type
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Current Limit
Operating Supply Voltage
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
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Skyworks Solutions, Inc. Power Switch ICs - POE/LAN
Datasheet
426In Stock
Min.: 1
Mult.: 1

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-56 Tray
Skyworks Solutions, Inc. Power Switch ICs - POE/LAN
Datasheet
24In Stock
Min.: 1
Mult.: 1

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-38 Tray
Skyworks Solutions, Inc. Power Switch ICs - POE/LAN
Datasheet
186In Stock
Min.: 1
Mult.: 1

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-38 Tray
Skyworks Solutions, Inc. Power Switch ICs - POE/LAN
Datasheet
256Expected 2026/07/07
Min.: 1
Mult.: 1

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-56 Tray
Skyworks Solutions, Inc. Power Switch ICs - POE/LAN
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 2,500
Mult.: 2,500
: 2,500

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-38 Reel
Skyworks Solutions, Inc. Power Switch ICs - POE/LAN
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 2,500
Mult.: 2,500
: 2,500

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-38 Reel
Skyworks Solutions, Inc. Power Switch ICs - POE/LAN
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 2,500
Mult.: 2,500
: 2,500

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-56 Reel
Skyworks Solutions, Inc. Power Switch ICs - POE/LAN
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 2,500
Mult.: 2,500
: 2,500

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-56 Reel