| Part Number | LT4276AHUFD#TRPBF | LT4276CHUFD#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 (PD), DC/DC | Controller (PD), DC/DC | 
| Number of Channels | 1 | 1 | 
| Power - Max | 90 W | 13 W | 
| Internal Switch(s) | No | No | 
| Auxiliary Sense | Yes | Yes | 
| Standards | 802.3at (PoE+), 802.3af (PoE), LTPoE++ | 802.3af (PoE) | 
| Voltage - Supply | 60V (Max) | 60V (Max) | 
| Current - Supply | 2mA (Max) | 2mA (Max) | 
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 28-WFQFN Exposed Pad | 28-WFQFN Exposed Pad | 
| Supplier Device Package | 28-QFN (4x5) | 28-QFN (4x5) |