| Part Number | LTC4257CS8-1#PBF | LTC4257IS8-1#PBF | 
|---|---|---|
| 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) | Controller (PD) | 
| Number of Channels | 1 | 1 | 
| Power - Max | 12.95 W | 12.95 W | 
| Internal Switch(s) | Yes | Yes | 
| Auxiliary Sense | No | No | 
| Standards | 802.3af (PoE) | 802.3af (PoE) | 
| Voltage - Supply | 57V (Max) | 57V (Max) | 
| Current - Supply | 3mA | 3mA | 
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 8-SO | 8-SO |