XL2001E1

@@ -0,0 +1,47 @@+# XL2001E1++**XLSEMI** · DC-DC Converters · SOIC-8++XL2001E1 from XLSEMI, in a SOIC-8. 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 | FB | input | Feedback pin. The internal feedback threshold is fixed at 5V; the FB pin senses the regulated output. When FB drops below ~1.5V the short-circuit protection latches the converter off. |+| 2 | NC | unconnected | No connection. Leave floating or tie to a copper pour per layout preference. |+| 3 | VC | passive | Internal voltage regulator bypass. In a typical application connect a 1µF capacitor from VC to VIN to decouple the internal regulator/reference. |+| 4 | VIN | power_in | Supply voltage input, 8V to 45V DC (absolute max 50V). Bypass VIN to GND with a large capacitor (e.g. 47µF/50V) close to the pin to suppress input noise. |+| 5 | SW | output | Power switch node. Drain of the internal high-side PMOS; connect to the external inductor and the cathode of the freewheeling Schottky diode (e.g. SS36). Pins 5 and 6 are internally tied. |+| 6 | SW | output | Power switch node (paralleled with pin 5) for current handling. Connect together with pin 5 to the inductor/Schottky node. |+| 7 | GND | power_in | Ground return. Route outside of the Schottky-diode-to-output-capacitor ground loop to keep switching current spikes from injecting noise into the IC. Pins 7 and 8 are internally tied. |+| 8 | GND | power_in | Ground return (paralleled with pin 7). Star-connect at the input capacitor return; keep away from the high-di/dt Schottky/output-cap loop. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XLSEMI |+| Package | SOIC-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `XL2001E1E1`++## CAD (KiCad official)++- Symbol: `XL2001E1`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [XLSEMI datasheet](docs/xl2001e1-datasheet.pdf) (9 pp, sha256 `538c3c7e556b83a5`, 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/xl2001e1-datasheet.pdf)

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