SY8205FCC

@@ -0,0 +1,49 @@+# SY8205FCC++**Silergy Corp** · DC-DC Converters · SOIC-8-EP++SY8205FCC from Silergy Corp, 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 | BS | passive | Boot-Strap pin. Supply for the high-side gate driver. Decouple to LX with a 0.1 µF ceramic capacitor. |+| 2 | LX | power_out | Switching node. Connect to the inductor of the buck converter output stage. |+| 3 | EN | input | Enable control input. Accurate 1.2 V rising threshold; add an RC network to the EN pin to program turn-on delay. |+| 4 | SS | passive | Soft-start programming pin. Connect a capacitor from this pin to GND to program soft-start time: Tss = Css × 0.6 V / 10 µA. |+| 5 | FB | input | Output feedback pin. Connect to the center tap of an external divider to program Vout = 0.6 V × (1 + R1/R2). Reference is 0.6 V typ. |+| 6 | VCC | power_out | Internal 3.3 V LDO output. Powers internal analog and driving circuitry. Add a 1 µF bypass capacitor to GND. |+| 7 | VIN | power_in | Power supply input (PVIN, tied with pin 8). 4.5 V-30 V input range. Decouple to GND with at least a 10 µF ceramic capacitor. |+| 8 | VIN | power_in | Power supply input (PVIN, tied with pin 7). 4.5 V-30 V input range. Decouple to GND with at least a 10 µF ceramic capacitor. |+| EP | GND | power_in | Exposed thermal paddle. Ground return. Solder to the PCB ground plane for electrical connection and thermal dissipation (θJC ≈ 10 °C/W). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Silergy Corp |+| Package | SOIC-8-EP |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++- `SY8205FCCFCC`+- `SY8205FCCDNC`++## CAD (KiCad official)++- Symbol: `SY8205FCC`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8-EP (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Silergy Corp datasheet](docs/sy8205fcc-datasheet.pdf) (11 pp, sha256 `850d2e5ca1513d6d`, 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/sy8205fcc-datasheet.pdf)

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