component
XL2009E1
Public Unreviewedby Ray
XLSEMI DC-DC Converters, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownXL2009E1
XLSEMI · DC-DC Converters · SOIC-8
XL2009E1 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. Senses the output voltage through an external resistor divider and regulates it against the internal 1.25V reference. |
| 2 | OCSET | input | Output constant-current set pin. An external resistor (RCS) to ground programs the CC-loop output current limit (e.g. 14 kΩ ≈ 2.1 A at VOUT=5V). |
| 3 | VC | passive | Internal voltage regulator bypass capacitor pin. Connect a 1 µF capacitor from VC to VIN to decouple the internal 3.3V regulator. |
| 4 | VIN | power_in | Supply voltage input. Operates from 8V to 36V DC (absolute max 40V). Bypass to GND with a large capacitor (e.g. 47 µF/50V) to eliminate input noise. |
| 5 | SW | output | Power switch output node. Internal PMOS drain that supplies the inductor. Pins 5 and 6 are tied together internally to share switch current. RDS(on) ≈ 60 mΩ typ. |
| 6 | SW | output | Power switch output node (tied to pin 5). Connects to the external inductor and Schottky freewheeling diode (e.g. SS34). |
| 7 | GND | power_in | Ground return. Should be routed outside the Schottky diode / output capacitor ground path to prevent switching-current spikes from coupling noise into the IC. |
| 8 | GND | power_in | Ground return (tied to pin 7). Same layout guidance as pin 7 to minimize switching noise injection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI |
| Package | SOIC-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
XL2009E1
CAD (KiCad official)
- Symbol:
XL2009E1 - 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 (10 pp, sha256
c3d2217728f68a09, 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).