凌力尔特提供的热插拔控制器IC可限制浪涌电流、在正常操作期间实施电流限制，并提供了其他的监控功能。其应用包括 -48V 或 +48V 电信和网络、以太网供电 (PoE)、ATCA、PCI、CompactPCI 和低电压电源排序。
以太网供电 (PoE) 接口控制器：用于 IEEE 802.3af 应用的供电设备 (PSE) 和受电设备 (PD) 侧的以太网供电 (PoE) 控制器。这些业界领先的器件能够满足该应用的符合性要求以及坚固性要求。（14）| 型号 | Channels | PSE/PD | Max Power | Description | IEEE-Compliant Detection | IEEE-Compliant Classification | IEEE-Compliant Disconnection | Packages | 数据手册DataSheet下载 |
| LTC4255 | 4 | PSE | Quad Network Power Controller with I²C Compatible Interface | N/A | N/A | non-compliant (DC-current) | SSOP-28 | LTC4255 | |
| LTC4257 | 1 | PD | IEEE 802.3af PD Power-Over-Ethernet Interface Controller | YES (Internal 25k resistor) | YES (Programmable) | N/A | SO-8, DFN-8 | LTC4257 | |
| LTC4257-1 | 1 | PD | IEEE 802.3af PD Power over Ethernet Interface Controller with Dual Current Limit | YES (Internal 25k resistor) | YES (Programmable) | N/A | SO-8, DFN-8 | LTC4257-1 | |
| LTC4258 | 4 | PSE | Quad IEEE 802.3af Power over Ethernet Controller with Integrated Detection | YES | YES | YES (DC-current) | SSOP-36 | LTC4258 | |
| LTC4259A | 4 | PSE | Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect | YES | YES | YES (DC- or AC-current) | SSOP-36 | LTC4259A | |
| LTC4259A-1 | 4 | PSE | Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect | YES | YES | YES (DC- or AC-current) | SSOP-36 | LTC4259A-1 | |
| LTC4263 | 1 | PSE | Single IEEE 803.2af Compliant PSE Controller with Internal Switch | Yes | Yes | Yes | SO-14, DFN-14 | LTC4263 | |
| LTC4263-1 | 1 | PSE | High Power Single PSE Controller with Internal Switch | Yes | Yes | Yes | SO-14, DFN-14 | LTC4263-1 | |
| LTC4264 | 1 | PD | High Power PD Interface Controller with 750mA Current Limit | YES (Internal 25k resistor) | DFN-12 | LTC4264 | |||
| LTC4265 | 1 | PD | IEEE 802.3 at High Power PD Interface Controller with 2-Event Classification Recognition | YES (Internal 25k resistor) | YES (Programmable) | DFN-12 | LTC4265 | ||
| LTC4267 | 1 | PD | Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator | YES (Internal 25k resistor) | YES (programmable) | SSOP-16, DFN-16 | LTC4267 | ||
| LTC4267-1 | 1 | PD | Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator | YES (Internal 25k resistor) | YES (programmable) | SSOP-16 | LTC4267-1 | ||
| LTC4267-3 | 1 | PD | Power over Ethernet IEEE 802.3af PD Interface with Integrated 300kHz Switching Regulator | YES (Internal 25k resistor) | YES (programmable) | SSOP-16 | LTC4267-3 | ||
| LTC4268-1 | 1 | PD | High Power PD with Synchronous NoOpto Flyback Controller | Yes (Internal 25k Resistor) | Yes | Yes | DFN-32 | LTC4268-1 |