component
XL1509-12E1
Public Made by Adomby adom
XLSEMI DC-DC Converters, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+50@@ -0,0 +1,50 @@+# XL1509-12E1++**XLSEMI** · DC-DC Converters · SOIC-8++XL1509-12E1 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 | VIN | power_in | Supply Voltage Input Pin. Operates from 4.5V to 40V DC. Bypass VIN to GND with a suitably large capacitor to eliminate input noise. Absolute maximum -0.3V to 45V. |+| 2 | OUTPUT | power_out | Power Switch Output Pin (SW). Switching node that supplies power to the external inductor/Schottky diode of the buck converter. Rated for 2A output current. |+| 3 | FEEDBACK | input | Feedback Pin (FB). Through an external resistor divider network, senses and regulates the output voltage. Internal reference threshold voltage is 1.23V. For the -12 fixed version, the internal divider is set so a direct connection to VOUT regulates at 12V. |+| 4 | ON/OFF | input | Enable Pin. Drive ON/OFF pin low to turn on the device; drive it high to turn it off. Floating defaults low (device on). TTL-compatible shutdown with hysteresis. |+| 5 | GND | power_in | Ground Pin. Care must be taken in layout: this pin should be placed outside of the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the XL1509. |+| 6 | GND | power_in | Ground Pin. Care must be taken in layout: this pin should be placed outside of the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the XL1509. |+| 7 | GND | power_in | Ground Pin. Care must be taken in layout: this pin should be placed outside of the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the XL1509. |+| 8 | GND | power_in | Ground Pin. Care must be taken in layout: this pin should be placed outside of the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the XL1509. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XLSEMI |+| Package | SOIC-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `XL1509-12E112E1`+- `XL1509-12E13.3E1`+- `XL1509-12E15.0E1`+- `XL1509-12E1ADJE1`++## CAD (KiCad official)++- Symbol: `XL1509-12E1`+- 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/xl1509-12e1-datasheet.pdf) (13 pp, sha256 `8b10b01cdcb05276`, 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/xl1509-12e1-datasheet.pdf)
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