component

SY8290ABC

Public Made by Adom

by adom

Silergy Corp DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)sy8290abcfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
sy8290abc / README.md
History Download
Ray Publish 0.1.0 402c91c 17d ago

SY8290ABC

Silergy Corp · DC-DC Converters · SOT-23-6

SY8290ABC from Silergy Corp, in a SOT-23-6. 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 BS passive Boot-strap pin that supplies the high-side gate driver; decouple it to the LX pin with a 0.1uF ceramic capacitor.
2 GND power_in Ground pin.
3 FB input Output feedback pin; connect to the center point of the output resistor divider to set VOUT = 0.6*(1+R1/R2), with an absolute maximum FB voltage of 3.6V.
4 EN input Enable control; pull high to turn on the regulator and do not float the pin.
5 IN power_in Input pin supplying the regulator over 5V to 40V; decouple to GND with at least 1uF ceramic capacitance.
6 LX output Inductor pin; connect to the switching node of the output inductor.

Key specifications

Parameter Value
Manufacturer Silergy Corp
Package SOT-23-6
Category Power Management (PMIC)
Pins 6

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Input Voltage Range VIN 5 40 V 3
Input UVLO Threshold VUVLO 4.9 V Rising 3
Input UVLO Hysteresis VUVLO_HYS 200 mV 3
Quiescent Current IQ 160 µA IOUT=0, VFB=VREF×105% 3
Shutdown Current ISHDN 10 µA EN=0 3
Feedback Reference Voltage VREF 0.588 0.6 0.612 V 3
FB Input Current IFB -50 10 50 nA VFB=VIN 3
Power FET RON RDS(ON)1 2 Ω 3
Power FET Current Limit ILIM 450 mA 3
EN Rising Threshold VENH 1.5 V 3
EN Falling Threshold VENL 0.4 V 3
Minimum OFF Time TOFF 100 ns 3
Minimum ON Time TOFF 100 ns 3
Soft Start Time Tss 400 us 3
Switching Frequency FSW 1.6 2 2.4 MHz 3
Thermal Shutdown Temperature TSD 150 °C 3
Thermal Recovery Hysteresis THYS 15 °C 3
Supply Input Voltage 42 V 2
FB Voltage 3.6 V 2
BS to LX Voltage 3.6 V 2
Power Dissipation PD 0.4 W TA = 25°C, SOT23-6 2
Package Thermal Resistance Junction-to-Ambient θ JA 250 °C/W 2
Package Thermal Resistance Junction-to-Case θ JC 130 °C/W 2
Junction Temperature Range (absolute maximum) 150 °C 2
Lead Temperature 260 °C Soldering, 10 sec. 2
Storage Temperature Range -65 150 °C 2
Supply Input Voltage (recommended) 5 40 V 2
BS to LX Voltage (recommended) 3.3 V 2
Junction Temperature Range (recommended) -40 125 °C 2
Ambient Temperature Range -40 85 °C 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper 3) The PCB copper area associated with LX pin must 7

CAD (KiCad official)

  • Symbol: SY8290ABC
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: sy8290abc-etched.step / sy8290abc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy8290abc.step / sy8290abc.glb are the bare package body.

Provenance

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

  • Datasheet: Silergy Corp datasheet (8 pp, sha256 0d35bdc8cf1bd902, retrieved 2026-10-17, 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