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SY50583FAC

Public Made by Adom

by adom

Silergy Corp AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SY50583FAC

Silergy Corp · AC-DC Controllers And Regulators · SOP-8

SY50583FAC from Silergy Corp, in a SOP-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 for the controller and the reference for the VIN bypass capacitor, which should be connected to the bias capacitor rather than to this pin.
2 ISET input Current set pin: connect a resistor to program the output limit current, with the internal current reference VREF specified at 620 mV to 710 mV (675 mV typical).
3 VIN power_in Power supply pin with a recommended operating range of 9 V to 16 V, a turn-on threshold of 13.5 V to 16 V and a turn-off threshold of 6.3 V to 7.8 V, with absolute maximum rating of -0.3 V to 17 V.
4 VSEN input Voltage sense pin connected to a resistor divider from the inductor or auxiliary winding to sense output voltage, with internal reference VVSEN_REF of 1.215 V to 1.285 V (1.25 V typical) and an over-voltage threshold of 1.03 times VVSEN_REF.
5 LX output Internal high-voltage MOSFET drain pin, with a MOSFET breakdown voltage of 700 V minimum and an absolute maximum LX current of 1.4 A.
6 LX output Internal high-voltage MOSFET drain pin, with a MOSFET breakdown voltage of 700 V minimum and an absolute maximum LX current of 1.4 A.
7 LX output Internal high-voltage MOSFET drain pin, with a MOSFET breakdown voltage of 700 V minimum and an absolute maximum LX current of 1.4 A.
8 LX output Internal high-voltage MOSFET drain pin, with a MOSFET breakdown voltage of 700 V minimum and an absolute maximum LX current of 1.4 A.

Key specifications

Parameter Value
Manufacturer Silergy Corp
Package SOP-8
Category Power Management (PMIC)
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 supply voltage VIN 9 16 V 3
Junction temperature range -40 125 °C 3
ISET pin voltage -0.3 3.6 V 3
VIN, VSEN pin voltage -0.3 17 V 3
VIN input current IVIN 10 mA 3
LX drain current ILX 1.4 A 3
LX pin voltage 700 V 3
Power dissipation SO8 1.1 W @ TA = 25°C 3
Junction temperature range -45 150 °C 3
Lead temperature (soldering) 260 °C Soldering, 10 sec. 3
Storage temperature range -65 150 °C 3
Package thermal resistance junction-to-ambient SO8 θJA 125 °C/W Note 2 3
Package thermal resistance junction-to-case SO8 θJC 60 °C/W 3
VIN turn-on threshold VVIN_ON 13.5 14.6 16 V VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
VIN turn-off threshold VVIN_OFF 6.3 7 7.8 V VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
Start up current IST 15 18 µA VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
VSEN pin reference voltage VVSEN_REF 1.215 1.25 1.285 V VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
Min ON time TON_MIN 300 ns VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
Max ON time TON_MAX 25 µs VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
Min OFF time TOFF_MIN 1.8 µs VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
Max OFF time TOFF_MAX 150 µs VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
Minimum switching period TPERIOD_MIN 22 µs VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
Current reference VREF 620 675 710 mV VVIN = 12V (Note 3), TA = 25°C unless otherwise specified 4
BV of HV MOSFET VBV 700 V VGS=0V, IDS=250µA 4
Static drain-source on-resistance RDSON 7 8.5 Ω VGS=12V, IDS=0.1A 4
Thermal shutdown temperature TSD 150 C 4

CAD (KiCad official)

  • Symbol: SY50583FAC
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: sy50583fac-etched.step / sy50583fac-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy50583fac.step / sy50583fac.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Silergy Corp datasheet (12 pp, sha256 01b05ad3ebe76ea9, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF