XL2576S-5.0E1

@@ -0,0 +1,48 @@+# XL2576S-5.0E1++**XLSEMI XL2576S 5 0E1** · DC-DC Converters · TO-263-5++XL2576S-5.0E1 from XLSEMI XL2576S 5 0E1, 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 (e.g. 100uF/50V) to eliminate input switching noise. |+| 2 | SW | power_out | Power Switch Output Pin. Switch node driven by the internal NPN power transistor (Vsat ~1.3V at 3A). Connects to the external inductor and freewheeling Schottky diode (e.g. 1N5820). Absolute max -0.3V to Vin. |+| 3 | GND | power_in | Ground Pin. Care must be taken in layout: route outside of the Schottky-diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the XL2576. Metal tab is also GND. |+| 4 | FB | input | Feedback Pin. Senses the output voltage through an external resistor divider network and regulates it. The internal feedback threshold voltage is 1.23V. Absolute max -0.3V to Vin. |+| 5 | EN | input | Enable Pin with hysteresis. Drive EN low (<0.8V) to turn the regulator ON; drive high (>1.4V) to turn it OFF. Floating defaults low (regulator ON). Input leakage 5uA typ @ VEN=2.5V. Absolute max -0.3V to Vin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XLSEMI XL2576S 5 0E1 |+| Package | TO-263-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `XL2576S-5.0E1S-5.0E1`+- `XL2576S-5.0E1S-ADJE1`+- `XL2576S-5.0E1S-12E1`+- `XL2576S-5.0E1T-5.0E1`+- `XL2576S-5.0E1T-ADJE1`++## CAD (KiCad official)++- Symbol: `XL2576S-5.0E1`+- Footprint: `Package_TO_SOT_SMD:TO-263-2`+- 3D model: TO-263-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [XLSEMI XL2576S 5 0E1 datasheet](docs/xl2576s-5-0e1-datasheet.pdf) (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](docs/xl2576s-5-0e1-datasheet.pdf)

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