TPS62933DRLR

TPS62933DRLR is the tape-and-reel SOT-583 (DRL) ordering code for the Texas Instruments TPS62933 synchronous step-down converter, listed by TI as ACTIVE. Per the datasheet device comparison table, the 933 code is the 3 A variant with PFM light-load operation and a soft-start (SS) pin - sibling codes carrying F, P or O in that position change the light-load mode or the pin function (FCCM, power-good pin, output-voltage tracking), so the digit string is a functional match point. It accepts a 3.8 V to 30 V input, holds its feedback reference between 792 mV and 808 mV (800 mV typical) at 25 °C, shows on-resistance of 76 mΩ high-side and 32 mΩ low-side typical, limits high-side current between 4.2 A and 5.8 A (5 A typical), draws 12 µA typical non-switching quiescent current, and switches at 450 kHz to 550 kHz with the RT pin floating (200 kHz to 2.2 MHz settable by resistor). The selection point is 3 A of output in an 8-pin SOT-583 footprint with micropower standby: point-of-load rails in industrial and consumer equipment keep battery drain low between bursts. Selection advice: confirm the full TPS62933 code against the design - a substitution with an F, P or O code changes the mode or pin function even though the footprint matches. Parameters verified against the TI TPS62933 datasheet SLUSEA4D (device comparison table and electrical characteristics).