XL1509-ADJE1

XL1509-ADJE1 is the SOIC-8 ordering code for the XLSEMI XL1509 adjustable step-down converter, listed in the ordering table of the current XLSEMI datasheet (Rev 2.0). Its feedback voltage sits between 1.193 V and 1.267 V (1.23 V typical), so the output is set by an external divider, and it switches at 127 kHz to 173 kHz (150 kHz typical) with a typical switch current limit of 4 A. The selection point is voltage freedom on the same proven power stage as the fixed-output family member: one adjustable converter covers the intermediate rails - 3.3 V, 9 V, custom sensor supplies - that fixed codes do not offer, across the wide input range the XL1509 family is built for. Selection advice: the ADJ code and the fixed 5 V code (XL1509-5.0E1, also listed) were verified separately for this catalog and share only the package - never carry the fixed 5 V output band onto this adjustable code, and include the feedback divider tolerance in the output accuracy budget, since the 1.23 V reference window alone allows roughly ±3 %. Parameters verified against the XLSEMI XL1509 datasheet Rev 2.0 (ordering information and electrical characteristics for the adjustable variant).