TPS54335ADDAR

TPS54335ADDAR is a 3 A synchronous step-down converter from Texas Instruments in 8-pin SO PowerPAD (DDA) on tape and reel, with 4.5 V to 28 V input, 0.8 V to 24 V adjustable output, 50 kHz to 1.5 MHz adjustable switching frequency, and internal 2 ms soft-start. Its advantage is efficient power in few parts: integrated 128-mohm and 84-mohm MOSFETs eliminate the external catch diode, pulse skipping keeps light-load efficiency high, current-mode control with cycle-by-cycle current limiting plus hiccup overcurrent protection guards the rail, and 2-uA shutdown current suits battery-backed and always-on systems. The business gain is one proven rail for 5 V, 12 V, and 24 V buses in industrial, appliance, and communications hardware: adjustable frequency lets one design trade inductor size against efficiency, and the PowerPAD package moves 3 A of heat into the board without a heatsink. Evidence: TI official TPS54335A product and order-code pages confirm the 4.5 V to 28 V input, 3 A output, 0.8 V reference, adjustable frequency, and DDA 8-pin SO PowerPAD package. Selection advice: the ADDAR code denotes the DDA PowerPAD package on tape and reel for volume production; the same silicon ships as TPS54335ADDA in a tube and in the smaller 10-pin VSON package, so match the full code to your footprint and packing, and pick the TPS54336A sibling only when you need adjustable soft-start at fixed 340 kHz instead of the internal 2 ms soft-start with adjustable frequency here.