In my Fidelity IRA I own IUSB, IAGG, and LTPZ. They have low volatility but all yield less than 5%. None of those are Fidelity products and I don't see why you'd prefer that, although you could probably find Fidelity-branded analogues.
To get a 5% yield you'd have to blend in some high yield bonds like HYG, but those will carry more risk/volatility. So something like 50% IUSB - 50% HYG might get you close.
Edited to add: Regarding the post subject, such a thing does not exist. Your goals of making at least 5% but not risking loss are not possible together.