The LM317AH delivers up to 1.5A continuous output with a maximum input of 40V — enough for a 5V or 12V bus derived from an unregulated supply up to 40V. The adjustable output spans 1.25V to 37V, so you set the rail with two resistors; no fixed-voltage variant needed.
Ripple rejection and protection — bench-level detail
PSRR runs 80dB to 65dB at 120Hz — that is solid ripple attenuation for an audio or instrumentation supply, though it rolls off at higher frequencies. Built-in over-current, over-temperature, and short-circuit protection mean the regulator survives a momentary output short without external crowbar circuitry.
The TO-205AD metal can is a through-hole package — field-swappable with basic tools, no hot-air station needed.