component
SY8204FCC
Public Unreviewedby Ray
Silergy Corp DC-DC Converters, SOIC-8-EP. 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
markdownSY8204FCC
Silergy Corp · DC-DC Converters · SOIC-8-EP
SY8204FCC 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 supplying the high-side gate driver. Decouple this pin to LX with a 0.1uF (100nF) ceramic capacitor. BS-to-LX voltage is rated to 4V absolute maximum. |
| 2 | LX | output | Inductor switching node pin. Connect this pin to the output inductor; it swings between VIN and GND at the switching frequency (~500kHz). Rated to 33V absolute maximum. |
| 3 | EN | input | Enable control input. Pulling EN low (<1.2V typical falling threshold) shuts the device down (<5uA shutdown current); driving EN high (>1.3V) enables the regulator. Rated to 33V absolute maximum. |
| 4 | SS | passive | Soft-start programming pin. Connect a capacitor from this pin to ground to program the soft-start time: Tss = Css * 0.6V / 10uA. |
| 5 | FB | input | Output feedback pin. Connect to the center tap of an external resistor divider from Vout to GND to program the output voltage: Vout = 0.6V * (1 + R1/R2). Internal reference is 0.6V ±1.5%. |
| 6 | VCC | power_out | Internal 3.3V LDO output that powers the analog and gate-driver circuits. Bypass to GND with a 1uF ceramic capacitor. May supply up to ~20mA to an external load. |
| 7 | VIN | power_in | Power supply input, 4.5V to 30V (33V abs max). Pins 7 and 8 are tied internally; decouple to GND with at least 4.7uF (10uF recommended) low-ESR X5R ceramic close to the pins. |
| 8 | VIN | power_in | Power supply input, 4.5V to 30V (33V abs max). Pins 7 and 8 are tied internally; decouple to GND with at least 4.7uF (10uF recommended) low-ESR X5R ceramic close to the pins. |
| EP | GND | power_in | Exposed thermal paddle serving as the ground pin. Must be soldered to the PCB ground plane for both electrical return and heat sinking (θJC = 10°C/W). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Silergy Corp |
| Package | SOIC-8-EP |
| Category | PMIC |
| Pins | 9 |
Ordering variants
Same part, different packaging or reel option.
SY8204FCC
CAD (KiCad official)
- Symbol:
SY8204FCC - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Silergy Corp datasheet (9 pp, sha256
cd3bd0df4aea54fc, 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).