LM2596S-5.0

LM2596S-5.0 is the UMW (UTD Semiconductor) fixed 5 V version of the LM2596 step-down regulator in TO-263-5, written word-for-word in the ordering information of the UMW datasheet (June 2025) alongside the maker’s fixed 3.3 V and 12 V codes and its adjustable code. UMW publishes no lifecycle grading for the part; the code stands in the maker’s current datasheet ordering table. Every figure on this page is read from UMW’s own electrical table for the 5.0 version: an output of 5.0 V typical, held between 4.80 V and 5.20 V at a 25 °C junction and between 4.75 V and 5.25 V across the full junction-temperature range — that guaranteed window applying at inputs of 7 V to 40 V and loads of 0.2 A to 3 A — efficiency of 80 % typical at 12 V in and 3 A out, an oscillator of 150 kHz typical with 117 kHz minimum and 183 kHz maximum limits, a saturation voltage of 1.16 V typical at 3 A, a peak current limit of 4.5 A typical, and a series input operating range of 4.75 V to 40 V for this non-HV version, with the 3 A output guaranteed inside the output-window conditions above rather than across the whole operating range (the maker’s own notes draw the same distinction). The selection point is the classic four-external-component 5 V buck for 12 V and 24 V industrial rails, sourced from a domestic maker with its own datasheet and its own guaranteed limits. Selection advice: the LM2596 5 V pages in this catalog are different makers’ devices — this UMW code, the HGSEMI code written LM2596S-5.0(HG), and the TI /NOPB codes — and the UMW adjustable LM2596S-ADJ is another table again; the oscillator limits and saturation figures do not transfer between them, so state the maker in the RFQ. Parameters verified against the UMW LM2596/LM2596HV datasheet (ordering information and electrical characteristics, June 2025).