The 2569 from Pololu Corporation is a non-isolated point-of-load DC-DC converter module with 1 output at 24 V and 3 A, accepting a 2.9 V to 24 V input.
The 2571 from Pololu Corporation is a non-isolated point-of-load (PoL) DC-DC converter module with 1 output at 9 to 30 V and 3 A, accepting a 2.9 V to 30 V input and rated 120 W.
The 2570 from Pololu Corporation is a non-isolated point-of-load DC-DC converter module with 1 output of 4 to 12 V at 3 A, accepting a 2.9 V to 12 V input.
The 2565 from Pololu Corporation is a non-isolated PoL board-mount DC-DC converter module with 1 output at 5 V and 2.5 A, accepting a 2.9 to 5 V input.