Power-over-Ethernet (PoE) Interface Controllers

Analog Devices’ power over Ethernet (PoE) products encompass a wide variety of power sourcing equipment (PSE) and powered device (PD) controllers that support multiple power levels: IEEE PoE (13W, 802.3af), IEEE PoE+ (25.5W, 802.3at), IEEE PoE++ (71.3W, 802.3bt), and ADI LTPoE++ (90W) standard. Our PSE and PD controllers provide complete PoE solutions and use external components such as power MOSFETs and sense resistors to lower resistance in the power path—minimizing heat dissipation and maximizing power efficiency. In addition, our robust cable discharge protection scheme, a high abs max rating on all analog pins, wide operating temperature, and overtemperature protection all make for extremely rugged PoE solutions that meet IEC61000 cable discharge requirements that far exceed ESD and cable ESD testing levels.
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Power-over-Ethernet (PoE) Interface Controllers

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SortOrderPart#Power Device Features# of PortsPoE StandardPoE TypeMax Power
(typ)
(W)
Price (1000+)
($ US)
1LT4293 PD 1 IEEE 802.3af, IEEE 802.3at, IEEE 802.3bt, LTPoE++ 1, 2, 3, 4, LTPoE++ 90 $1.75 (LT4293IDD#PBF)
2LTC4291-1 PSE 4 IEEE 802.3af, IEEE 802.3at, IEEE 802.3bt 1, 2, 3, 4 71 $2.00 (LTC4291IUF-1#PBF)
3LTC4292 PSE 4 IEEE 802.3af, IEEE 802.3at, IEEE 802.3bt 1, 2, 3, 4 71 $6.00 (LTC4292IUJ#PBF)
4LTC4291 PSE 4 IEEE 802.3af, IEEE 802.3at, IEEE 802.3bt 1, 2, 3, 4 71 $2.00 (LTC4291IUF#PBF)
5LT4294 PD 1 IEEE 802.3af, IEEE 802.3at, IEEE 802.3bt 1, 2, 3, 4 71 $1.55 (LT4294IDD#PBF)
6LTC4279 PSE 1 IEEE 802.3af, IEEE 802.3at, LTPoE++ 1, 2, LTPoE++ 123 $3.45 (LTC4279IS#PBF)
7LT4295 PD 1 IEEE 802.3af, IEEE 802.3at, IEEE 802.3bt 1, 2, 3, 4 71 $2.19 (LT4295IUFD#PBF)
8LT4276 PD 1 IEEE 802.3af, IEEE 802.3at, LTPoE++ 1, 2, LTPoE++ 90 $1.65 (LT4276CIUFD#PBF)
9LTC4290- 8 IEEE 802.3af, IEEE 802.3at, LTPoE++ 1, 2, LTPoE++ 90 $7.00 (LTC4290BIUJ#PBF)
10LT4275 PD 1 IEEE 802.3af, IEEE 802.3at, LTPoE++ 1, 2, LTPoE++ 90 $0.95 (LT4275CIDD#PBF)
11LTC4271 PSE 12 IEEE 802.3af, IEEE 802.3at, LTPoE++ 1, 2, LTPoE++ 90 $3.00 (LTC4271IUF#PBF)
12LTC4270- 12 IEEE 802.3af, IEEE 802.3at, LTPoE++ 1, 2, LTPoE++ 90 $9.00 (LTC4270BIUKG#PBF)
13LTC4274 PSE 1 IEEE 802.3af, IEEE 802.3at 2 25.5 $4.50 (LTC4274CUHF#PBF)
14LTC4278 PD 1 IEEE 802.3af, IEEE 802.3at 2 25.5 $2.30 (LTC4278CDKD#PBF)
15LTC4269-2 PD 1 IEEE 802.3af, IEEE 802.3at 2 25.5 $2.30 (LTC4269CDKD-2#PBF)
16LTC4269-1Reference Circuit Available PD 1 IEEE 802.3af, IEEE 802.3at 2 25.5 $2.10 (LTC4269CDKD-1#PBF)
17LTC4266 PSE 4 IEEE 802.3af, IEEE 802.3at 2 25.5 $5.00 (LTC4266CGW#PBF)
18LTC4265 PD 1 IEEE 802.3af, IEEE 802.3at 2 25.5 $1.30 (LTC4265CDE#PBF)
19LTC4267-3 PD 1 IEEE 802.3af 1 13 $1.67 (LTC4267CGN-3#PBF)
20LTC4263-1 PSE 1-- 30 $2.95 (LTC4263CDE-1#PBF)
21LTC4263 PSE 1 IEEE 802.3af 1 12.95 $2.95 (LTC4263CDE#PBF)
22LTC4267-1 PD 1 IEEE 802.3af 1 13 $1.67 (LTC4267CGN-1#PBF)
23LTC4267 PD 1 IEEE 802.3af 1 13 $1.67 (LTC4267CGN#PBF)
24LTC4257-1 PD 1 IEEE 802.3af 1 13 $0.99 (LTC4257CS8-1#PBF)
25LTC4257 PD 1 IEEE 802.3af 1 13 $0.92 (LTC4257CS8#PBF)