The TPS65283RGET is a dual-channel step-down (buck) regulator from Texas Instruments that delivers 3.5 A on one output and 2.5 A on the other, both adjustable from 0.6 V up to 9 V. This asymmetric current split is useful when a system needs a higher-current core rail and a lower-current I/O or analog rail from a single controller.
Switching frequency range and inductor selection
A lower frequency reduces switching losses but demands a larger inductor; a higher frequency shrinks the magnetics but increases core and FET losses. The 2 MHz ceiling keeps the fundamental harmonics above the AM radio band, which simplifies EMI filtering in noise-sensitive designs.