| Part number | SY58978UFAC |
|---|---|
| Description | QR, buck, 4 drain, no aux winding, with 600V/2 Ω MOS |
| Topology | Buck |
| Dimming mode | Non-dimming |
| PF (>) | 0.9 |
| Input type | 120VAC, 230VAC |
| Iout (max) (A) | 0.3 |
| Pout (max) (W) | 20 |
| Package | SO8 |
| Application | Buck, non dimming, PFC |
SY58978U is a single-stage Buck PFC driver for LED lighting applications. SY58978U adopts the proprietary control architecture to achieve an accurate regulation of LED current, unity power factor. It drives the converter in Quasi-Resonant mode to achieve high efficiency. SY58978U integrates 600V MOSFET inside to save driver space further. SY58978U is available in SO8 package.
Photo of evaluation board
Photo of evaluation board
The EVB_SY58978UFAC is intended for evaluating Buck Regulator For LED Lighting
| Title | Date |
|---|---|
| Automotive_Solutions_Q1_2026 | 2026-03-06 |
| Silergy_Catalog_Q1_2026 | 2026-02-09 |
