Shown on this slide is Linear Technology’s LTPoE++ portfolio, as well as the lower power grades supporting the PoE+ and PoE standards. As mentioned before, designing a complete high power system with LTPoE++ controllers is as simple as matching controllers with the same LTPoE++ power level and choosing how many PSE ports are needed. For 12-port and 8-port PSEs, the LTC4270/LTC4271 and LTC4290/LTC4271 chipsets provide a transformer based isolated solution that result in lower per port costs. For 4-ports or lower PSEs, the non-isolated LTC4266 and LTC4274 provide small single IC solutions. The LT4275 PD controller pairs with any of the PSE controllers, enabling a wide variety of end-to-end PoE systems.