| TYPE | DESCRIPTION |
| Mfr | Analog Devices Inc./Maxim Integrated |
| Series | - |
| Package | Tube |
| Part Status | Active |
| Type | Controller (PD), DC/DC |
| Number of Channels | 1 |
| Power - Max | 6.49 W |
| Internal Switch(s) | Yes |
| Auxiliary Sense | Yes |
| Standards | 802.3af (PoE) |
| Voltage - Supply | 8.7V ~ 60V |
| Current - Supply | 4.8mA |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 20-WFQFN Exposed Pad |
| Supplier Device Package | 20-TQFN (4x4) |
| Base Product Number | MAX5991 |
