component
XL4301E1
Public Made by Adomby adom
XLSEMI DC-DC Converters, SOIC-8-EP. Pinout extracted from the datasheet, 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
markdownXL4301E1
XLSEMI · DC-DC Converters · SOIC-8-EP
XL4301E1 from XLSEMI, in a SOIC-8-EP. 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 | NC | unconnected | Not connected. Leave floating or tie to ground per PCB convention. |
| 2 | SW | output | Power switch output. Drain of the internal high-side MOSFET; connects to the external inductor/catch diode of the buck converter. The back exposed pad is internally tied to SW and should be connected to this node on the PCB. |
| 3 | GND | power_in | Ground reference for the IC and the return for the input/output bypass capacitors. |
| 4 | FB | input | Feedback input to the internal error amplifier. Senses the regulated output through an external resistor divider; regulation threshold is 1.25 V typical (VOUT = 1.25 V x (1 + R2/R1)). |
| 5 | CS | input | Output current sense input for the constant-current loop. Load current is set by an external sense resistor: Iload = 0.11 V / RCS (VCS typ. 110 mV). |
| 6 | LC | input | Output cable-loss compensation input. A user-programmable resistor (R3) from this pin to ground selects the amount of voltage-drop compensation added to the output as a function of load current (see Table 2). |
| 7 | VC | passive | Internal voltage regulator bypass pin. Connect a 1 uF capacitor from VC to VIN to decouple the internal LDO that supplies the control circuitry. |
| 8 | VIN | power_in | Supply voltage input, 8 V to 40 V DC operating range (45 V absolute maximum). Bypass to GND with a suitably large low-ESR capacitor (e.g. 100 uF/50 V) close to the pin to eliminate input noise. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI |
| Package | SOIC-8-EP |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
XL4301E1
CAD (KiCad official)
- Symbol:
XL4301E1 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
- 3D model files:
xl4301e1-etched.step/xl4301e1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xl4301e1.step/xl4301e1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XLSEMI datasheet (10 pp, sha256
3f3b4c16d0fca911, 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).