RT8279GSP

@@ -0,0 +1,48 @@+# RT8279GSP++**Richtek Tech** · DC-DC Converters · SOP-8-EP-150mil++RT8279GSP from Richtek Tech, in a SOP-8-EP-150mil. 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 | BOOT | power_in | High Side Gate Drive Boost Input. Supplies drive for the high-side N-MOSFET switch. Connect a 10nF (or greater) capacitor from SW to BOOT to power the high side switch. Absolute max (VSW-0.3V) to (VSW+6V). |+| 2 | NC | unconnected | No Internal Connection. |+| 3 | NC | unconnected | No Internal Connection. |+| 4 | FB | input | Feedback Input. Connect to a resistor divider from VOUT to set the output voltage. Feedback threshold is 1.222V (typ, VREF). |+| 5 | EN | input | Enable Input. Digital input that turns the regulator on/off. VIH > 1.4V turns the regulator on; VIL < 0.4V turns it off. Leave floating for automatic startup (has ~1µA internal pull-up). Absolute max 6V. |+| 6 | GND | power_in | Ground. Pins 6 and 9 (exposed pad) are the device ground. The exposed pad must be soldered to a large PCB copper area connected to GND for maximum power dissipation. |+| 7 | VIN | power_in | Power Input, 5.5V to 36V operating range (absolute max 40V). Bypass with a suitable large capacitor from VIN to GND to eliminate input noise. |+| 8 | SW | power_out | Power Switching Output. Connect to the inductor and to the BOOT bootstrap capacitor (a capacitor from SW to BOOT is required to power the high side switch). Absolute max -0.3V to VIN+0.3V. |+| 9 | GND | power_in | Exposed thermal pad. Electrically connected to GND (pin 6). Must be soldered to a large PCB copper area for thermal dissipation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Richtek Tech |+| Package | SOP-8-EP-150mil |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++- `RT8279GSPGSP`++## CAD (KiCad official)++- Symbol: `RT8279GSP`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8-EP-150mil (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Richtek Tech datasheet](docs/rt8279gsp-datasheet.pdf) (14 pp, sha256 `d5cade8157c32c80`, 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/rt8279gsp-datasheet.pdf)

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