600 kHz / 1.3 MHz boost controller — what the switching frequency means for your rail
The LM2622MMX-ADJ is a step-up PWM switching regulator from Texas Instruments, part of the Analog & Data Acquisition category. It operates at a selectable 600 kHz or 1.3 MHz oscillator frequency — the higher setting shrinks the inductor and output capacitor footprint, while the lower setting cuts switching losses for efficiency-sensitive designs.
Package reality — bulk tube, not tape-and-reel
Shipped in bulk (tube) rather than tape-and-reel — this matters for pick-and-place setup. A tube-fed feeder or manual placement is required; the part does not arrive on a 13-inch reel for auto-insertion. Confirm your line's tube-handling capability before committing the BOM quantity.
Peer topology check — why the LM25117 and LM51231 do not drop in
The LM2622MMX-ADJ is a step-up (boost) controller. The LM25117PMHX/NOPB is a step-down (buck) controller — opposite topology, different inductor and output stage requirements. The LM51231QRGRRQ1 is also a boost controller but adds synchronous rectification and automotive AEC-Q100 qualification, targeting a different supply voltage range and feature set. Neither is a pin-compatible or functional second-source for the LM2622.