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Contents

README

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SY8213FCC

Silergy Corp · DC-DC Converters · SOIC-8-EP

SY8213FCC from Silergy Corp, in a SOIC-8-EP. 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 supplying the high side gate driver; decouple to the LX pin with a 0.1uF ceramic capacitor.
2 LX power_out Inductor pin; connect to the switching node of the inductor.
3 EN input Enable control; pulling low (<1.2V) shuts the device down and driving high (>1.3V) turns it on.
4 SS passive Softstart programming pin; connect a capacitor to ground, Tss(ms)=Css(nF)*0.6(V)/10(uA).
5 FB input Output feedback pin; connect to the center point of the output resistor divider, Vout=0.6*(1+R1/R2).
6 VCC power_out Internal 3.3V LDO output powering internal analog and driving circuits; add a 1uF bypass capacitor to GND (sources up to 20mA).
7 SVIN power_in Analog supply input; bypass with a 1uF capacitor to ground.
8 PVIN power_in Power supply input (4.5V to 30V); decouple to GND with at least 10uF ceramic capacitor.
9 GND power_in Ground pin on the exposed paddle; maximize PCB copper area connected to it for thermal and noise performance.

Key specifications

Parameter Value
Manufacturer Silergy Corp
Package SOIC-8-EP
Category Power Management (PMIC)
Pins 9

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 4.5 30 V 3
Quiescent Current IQ 200 µA IOUT=0, VFB=VREF*105% 3
Shutdown Current ISHDN 10 µA EN=0 3
Feedback Reference Voltage VREF 0.591 0.6 0.609 V 3
FB Input Current IFB -50 50 nA VFB=VCC 3
EN falling threshold VENL 1.1 1.2 1.3 V 3
Internal LDO Output VVCC 3.2 3.3 3.4 V VIN=4V 3
Power Dissipation PD 3.3 W @ TA = 25°C, SO8E 2
Junction Temperature Range (absolute maximum) -40 150 °C 2
Storage Temperature Range -65 150 °C 2
Lead Temperature (Soldering) 260 °C Soldering, 10 sec. 2
Supply Input Voltage 4.5 30 V 2
Junction Temperature Range (recommended) -40 125 °C 2
Ambient Temperature Range -40 85 °C 2
Top FET RON RDS(ON)1 90 mΩ 3
Bottom FET RON RDS(ON)2 60 mΩ 3
Bottom FET Current Limit ILIM 4 A 3
EN threshold hysteresis VEN,HYS 0.1 V 3
Input UVLO threshold VUVLO 4 V 3
UVLO hysteresis VHYS 0.2 V 3
Oscillator Frequency FOSC 0.5 MHz IOUT=200mA 3
Min ON Time 80 ns 3
Min OFF Time 120 ns 3
Thermal Shutdown Temperature TSD 160 °C 3
Thermal Shutdown Hysteresis TSD,HYS 20 °C 3
Package Thermal Resistance junction-to-ambient θJA 30 °C/W 2
Package Thermal Resistance junction-to-case θJC 10 °C/W 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 ground plane is highly desirable. 2) CINmust be close to IN and GND Pins. The loop area formed by CIN and GND must be minimized. 3) The PCB copper area associated with LX pin must 8

CAD (KiCad official)

  • Symbol: SY8213FCC
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm
  • 3D model: SOIC-8-EP (KiCad packages3D, STEP)
  • 3D model files: sy8213fcc-etched.step / sy8213fcc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy8213fcc.step / sy8213fcc.glb are the bare package body.

Provenance

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

  • Datasheet: Silergy Corp datasheet (9 pp, sha256 fe04792090409c80, 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