| Manufacturer | Analog Devices Inc. |
| Package | Tube |
| Description | Power Over Ethernet Controller 8 Channel 802.3at (PoE+), 802.3af (PoE) 40-QFN (6×6) |
| Manufacturer Standard Lead Time | 13 Weeks |
| Product Status | Active |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 40-WFQFN Exposed Pad |
| Supplier Device Package | 40-QFN (6×6) |
| Base Product Number | LTC4290 |
| Product Type: | Power Switch ICs – POE / LAN |
The LTC4290BIUJ#PBF is a highly integrated PoE controller that supports the IEEE 802.3af/at standards, which define the power delivery over Ethernet. It provides features such as detection, classification, and current limiting for PoE-powered devices. Additionally, it includes built-in protection features to ensure safe and reliable power delivery.