SY8301ABC from Silergy Corp, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	BS	passive	Boot-strap pin. Supplies the high-side gate driver. Connect a 0.1µF ceramic capacitor between the BS and LX pins. BS-LX voltage rating is -0.3 to 4V.
2	GND	power_in	Ground pin. Common ground return for the IC and the input/output decoupling capacitors.
3	FB	input	Output feedback pin. Connect to the center of the output resistor divider to program VOUT = 0.8V × (1 + R1/R2). Reference voltage is 0.8V ±1%; FB input current ±50nA max.
4	EN	input	Enable control pin. Pull high (VENH ≥ 1.4V) to turn on the IC; pull below VENL (≤1V) to shut down. Do not leave floating. Absolute max -0.3 to 40V.
5	IN	power_in	Input supply pin. 4.5V to 40V operating range (absolute max 40V). Decouple to GND with at least a 1µF ceramic capacitor placed close to the pin.
6	LX	power_out	Switching node / inductor pin. Connects to the drain of the internal high-side and low-side FETs; route to the external inductor. Absolute max -0.3 to 40V (dynamic IN+3V to GND-5V for 10ns).

Key specifications

Parameter	Value
Manufacturer	Silergy Corp
Package	SOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

SY8301ABC

CAD (KiCad official)

Symbol: SY8301ABC
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sy8301abc.step`	97 KB	You want the bare part, or you mark your own boards.
`sy8301abc-etched.step`	2.1 MB	You want the part with `SY8301ABC` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 498 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Silergy Corp datasheet (14 pp, sha256 d2a1acae6a41e7e6, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF