AP3012KTR-G1

AP3012KTR-G1 is a Diodes Incorporated step-up (boost) DC-DC converter in SOT-23-5, tape and reel — the boost stage for series white-LED backlight strings and other small high-voltage rails. The ordering code appears verbatim in the maker's datasheet ordering table: K is the SOT-23-5 package, TR is tape and reel and G1 the lead-free/green finish. The selection point is the feedback accuracy and speed in a 5-pin package: the reference is 1.17 V minimum, 1.25 V typical and 1.33 V maximum at the datasheet's stated point (VIN = 5 V, VOUT = 24 V, IOUT = 30 mA), and switching runs at 1.1 MHz minimum, 1.5 MHz typical and 1.9 MHz maximum, keeping the boost inductor small. The feedback figures are stated at TA = 25 °C with VSHDN = 3 V, and the frequency is measured at VIN = 3 V with VSHDN = 3 V — quote them with those bases. Selection advice: the input ceiling is 16 V maximum — this is a low-voltage-input boost, so it suits single-cell and 5 V-fed backlight designs, not direct 24 V input rails. Size the LED string voltage against the switch rating in the datasheet before layout. No current lifecycle status was verified for this code in this review, so none is claimed here — supply is confirmed per order against the exact code. Parameters verified against the Diodes DS44577 Rev. 2-2 datasheet.