XL4005E1

@@ -0,0 +1,44 @@+# XL4005E1++**XLSEMI** · DC-DC Converters · TO-263-5++XL4005E1 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. Should be placed outside the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the XL4005. |+| 2 | FB | input | Feedback pin. Senses the output voltage through an external resistor divider network and regulates it. Feedback threshold voltage is 0.8V. |+| 3 | SW | output | Power switch output pin. Switch node connected to the internal power MOSFET (25 mΩ) that supplies power to the output inductor. Also connected to the exposed metal tab of the TO263-5L package. |+| 4 | EN | input | Enable pin. Drive high (>1.4V) to turn the device on; drive low (<0.8V) to turn it off. TTL-compatible with hysteresis. |+| 5 | VIN | power_in | Supply voltage input pin. Operates from 5V to 32V DC (absolute max 35V). Bypass VIN to GND with a suitably large capacitor (e.g. 220µF/50V) to eliminate input noise. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XLSEMI |+| Package | TO-263-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `XL4005E1E1`++## CAD (KiCad official)++- Symbol: `XL4005E1`+- 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 datasheet](docs/xl4005e1-datasheet.pdf) (10 pp, sha256 `dccfa80a42b888ff`, 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/xl4005e1-datasheet.pdf)

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