Designing an ABBA circuit (3 input, 2 output) inputs: (GND, +V, Logic)
The device you're looking for is called an H Bridge. They are frequently used to drive motors since they switch the power to either polarity which allows control of direction of rotation.

Since you need very low losses, you need to find one built using MOSFETs instead of BJTs.

TI's Selection

Digi-Key, PMIC - MOSFET, Bridge Drivers - Internal Switch: H-Bridge

Digi-Key, PMIC - Motor, Bridge Drivers: Brushed DC