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XL2576S-ADJE1

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by Ray

XLSEMI DC-DC Converters, TO-263-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

markdown

XL2576S-ADJE1

XLSEMI · DC-DC Converters · TO-263-5

XL2576S-ADJE1 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 VIN power_in Supply Voltage Input Pin. Operates from 4.5V to 40V DC. Bypass VIN to GND with a suitably large capacitor to eliminate input noise. Absolute max 45V.
2 SW power_out Power Switch Output Pin. Switch node that supplies power to the output inductor and Schottky catch diode. Rated for VSW = -0.3V to VIN.
3 GND power_in Ground Pin. Must be routed carefully - place outside the Schottky diode to output-capacitor ground path to prevent switching current spikes from inducing noise. Also connected internally to the metal tab.
4 FB input Feedback Pin. Through an external resistor divider, senses the output voltage and regulates it. Feedback threshold voltage is 1.23V. Absolute max: -0.3V to VIN.
5 EN input Enable Pin. Drive EN low to turn on the device, drive high to turn it off. Floating defaults to low (enabled). VEN threshold: 1.4V high (off) / 0.8V low (on). Absolute max: -0.3V to VIN.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • XL2576S-ADJE1
  • XL2576S-ADJE1S-5.0E1
  • XL2576S-ADJE1S-12E1
  • XL2576S-ADJE1T-ADJE1
  • XL2576S-ADJE1T-5.0E1

CAD (KiCad official)

  • Symbol: XL2576S-ADJE1
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: XLSEMI datasheet (15 pp, sha256 c3857bfcd9cf7c08, 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