| Part Number | LTC4274AIUHF-1#TRPBF | LTC4274AIUHF-2#TRPBF | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Category | PMIC - Power Over Ethernet (PoE) Controllers | PMIC - Power Over Ethernet (PoE) Controllers | 
|   |   | |
| Product Status | Active | Active | 
| Type | Controller (PSE) | Controller (PSE) | 
| Number of Channels | 1 | 1 | 
| Power - Max | 38.7 W | 52.7 W | 
| Internal Switch(s) | No | No | 
| Auxiliary Sense | No | No | 
| Standards | 802.3at (PoE+), 802.3af (PoE), LTPoE++ | 802.3at (PoE+), 802.3af (PoE), LTPoE++ | 
| Voltage - Supply | 45V ~ 57V | 45V ~ 57V | 
| Current - Supply | 2.4mA | 2.4mA | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 38-WFQFN Exposed Pad | 38-WFQFN Exposed Pad | 
| Supplier Device Package | 38-QFN (5x7) | 38-QFN (5x7) |