component
SY50282FAC
Public Made by Adomby adom
Silergy Corp AC-DC Controllers & Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, 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
markdownSY50282FAC
Silergy Corp · AC-DC Controllers & Regulators · SOIC-8
SY50282FAC from Silergy Corp, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground pin of the controller. |
| 2 | ISET | passive | Current set pin; connect a resistor to program the reference output current. |
| 3 | VIN | power_in | Power supply pin; recommended operating VIN range is 8V to 15.4V, with absolute maximum -0.3V to 17V. |
| 4 | VSEN | input | Voltage sense pin; connect to a resistor divider from the inductor or auxiliary winding to sense output voltage. |
| 5 | LX | output | Internal high-voltage MOSFET drain pin; LX absolute maximum rating is 500V. |
| 6 | LX | output | Internal high-voltage MOSFET drain pin; LX absolute maximum rating is 500V. |
| 7 | LX | output | Internal high-voltage MOSFET drain pin; LX absolute maximum rating is 500V. |
| 8 | LX | output | Internal high-voltage MOSFET drain pin; LX absolute maximum rating is 500V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Silergy Corp |
| Package | SOIC-8 |
| Category | Power Management ICs |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN pin voltage (recommended operating) | VIN | 8 | 15.4 | V | 3 | ||
| Junction temperature range (recommended operating) | TJ | -40 | 125 | °C | 3 | ||
| ISET pin voltage (absolute maximum) | -0.3 | 3.6 | V | 3 | |||
| VIN, VSEN pin voltage (absolute maximum) | -0.3 | 17 | V | 3 | |||
| VIN input current (absolute maximum) | IVIN | 20 | mA | 3 | |||
| LX switch current (absolute maximum) | ILX | 1.4 | A | 3 | |||
| LX voltage (absolute maximum) | LX | 500 | V | 3 | |||
| Power dissipation SO-8 (absolute maximum) | 1.1 | W | TA = 25°C | 3 | |||
| Maximum junction temperature (absolute maximum) | TJ | 160 | °C | 3 | |||
| Lead temperature (absolute maximum) | 260 | °C | Soldering, 10 sec. | 3 | |||
| Storage temperature range (absolute maximum) | TSTG | -65 | 150 | °C | 3 | ||
| Package thermal resistance junction-to-ambient SO8 | θJA | 88 | °C/W | 3 | |||
| Package thermal resistance junction-to-case SO8 | θJC | 45 | °C/W | 3 | |||
| VIN turn-on threshold | VVIN,ON | 14 | V | 4 | |||
| VIN turn-off threshold | VVIN,OFF | 7 | V | 4 | |||
| Start up current | IST | 15 | µA | 4 | |||
| VSEN pin reference voltage | VVSEN,REF | 1.215 | 1.25 | 1.285 | V | 4 | |
| Min ON Time | tON,MIN | 300 | ns | 4 | |||
| Max ON Time | tON,MAX | 25 | µs | 4 | |||
| Min OFF Time | tOFF,MIN | 1.8 | µs | 4 | |||
| Max OFF Time | tOFF,MAX | 150 | µs | 4 | |||
| Max switching frequency | fMAX | 45 | kHz | 4 | |||
| Current reference | VREF | 620 | 675 | 710 | mV | 4 | |
| BV of HV MOSFET | VBV | 500 | V | 4 | |||
| Turn on resistor (Rdson) | Rdson | 12 | 4 | ||||
| Thermal shutdown temperature | TSD | 150 | C | 4 |
CAD (KiCad official)
- Symbol:
SY50282FAC - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
sy50282fac-etched.step/sy50282fac-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sy50282fac.step/sy50282fac.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Silergy Corp datasheet (14 pp, sha256
ae210f9312ac91c5, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).