Seth Kerr from Oak Development Technologies has developed a new breakout board:

TPS22917 Breakout board – Load Driver/Power Switch
Availability: Depending on availability, this product might take longer than usual to ship. (Up to three weeks).
Easily turn your project into a lower power system with the TPS22917 power switch and load driver from Texas Instruments, delivered on an easy to use breakout.
This breakout enables you to easily create a GPIO controlled load switch to ensure you power components when you need them.

Specifications:
- Vin: 1V-5V
- Vout: 1V-5V
- Current Output(max): 2A
- Rds on: 80mOhms
- Interface: On/Off
- Output type: P-Channel
- Control: GPIO controllable (digitally controllable)