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docs xl4015e1: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
pads.json add symbol pin "6" for the exposed thermal pad: the footprint carries the pad and the symbol had none, so it reached no… · Ray
page.json xl4015e1: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray
README.md xl4015e1: specified limits as data (metadata.characteristics, 13 rows from the datasheet) · Ray
xl4015e1-etched.fit.json xl4015e1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
xl4015e1-etched.glb xl4015e1: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray
xl4015e1-etched.step xl4015e1: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray
xl4015e1.glb fix footprint: TO-263-2 -> TO-263-5_TabPin6 (pad_count, 5 pins) · Ray
xl4015e1.kicad_mod fix footprint: TO-263-2 -> TO-263-5_TabPin6 (pad_count, 5 pins) · Ray
xl4015e1.kicad_sym add symbol pin "6" for the exposed thermal pad: the footprint carries the pad and the symbol had none, so it reached no… · Ray
xl4015e1.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
xl4015e1.step fix footprint: TO-263-2 -> TO-263-5_TabPin6 (pad_count, 5 pins) · Ray

XL4015E1

XLSEMI · DC-DC Converters · TO-263-5

XL4015E1 from XLSEMI, in a TO-263-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin. Layout-sensitive: should be placed outside of the Schottky-diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the device.
2 FB input Feedback pin. Senses the output voltage through an external resistor divider and regulates it against the internal 1.25V reference. Output voltage set by VOUT = 1.25 * (1 + R2/R1).
3 SW power_out Power switch output pin. Switch node connected to the drain of the internal power PMOS; supplies the switching waveform to the external inductor and freewheeling Schottky diode. Absolute max -0.3V to VIN. The TO263-5L metal tab is also electrically SW.
4 VC passive Internal voltage regulator bypass capacitor pin. Connect a 1 uF (105) ceramic capacitor from VC to VIN to bypass the internal regulator.
5 VIN power_in Supply voltage input pin. Operates from 8V to 36V DC (absolute max 40V). Bypass VIN to GND with a suitably large capacitor (e.g. 220 uF/50V) to eliminate input noise.

Key specifications

Parameter Value
Manufacturer XLSEMI
Package TO-263-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • XL4015E1

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Feedback Voltage VFB 1.225 1.25 1.275 V Vin = 8V to 40V, Vout=5V, Iload=0.5A to 5A 5
Input operation voltage Vin 8 36 V 5
Quiescent Supply Current Iq 2.1 5 mA VFB = 5V 5
Oscillator Frequency Fosc 144 180 216 KHz 5
Output PMOS Rdson Rdson 60 80 mohm VFB=0V, Vin=12V, ISW=5A 5
Input Voltage Vin -0.3 40 V 4
Feedback Pin Voltage VFB -0.3 7 V 4
Output Switch Pin Voltage VSW -0.3 V Maximum printed as Vin (not a number) 4
Operating Junction Temperature TJ -40 125 oC 4
Storage Temperature TSTG -65 150 oC 4
Lead Temperature TLEAD 260 oC Soldering, 10 sec 4
ESD (HBM) 2000 V Printed as >2000 4
Thermal Resistance (TO263-5L) Junction to Ambient RJA 30 oC /W Junction to Ambient, No Heatsink, Free Air 4

CAD (KiCad official)

  • Symbol: XL4015E1
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: xl4015e1-etched.step / xl4015e1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xl4015e1.step / xl4015e1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: XLSEMI datasheet (10 pp, sha256 3c15d21803d94767, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF