SY6280AAAC from Silergy Corp, in a SOT-23-5. 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	OUT	power_out	Switched power output pin. Connect a 10µF decoupling capacitor to GND. Delivers up to 2A load current from the internal P-channel MOSFET (R_DS(on) ~63mΩ typ.). No body diode, so reverse current from OUT to IN is blocked when disabled.
2	GND	power_in	Device ground reference. Also the case position for θ_JC thermal measurement per JEDEC 51-3.
3	ISET	input	Current-limit programming pin. Connect a resistor R_SET from this pin to GND to set the over-current threshold: I_LIM (A) = 6800 / R_SET (Ω). Minimum programmable limit is 0.4A; operation above 2A is not recommended.
4	EN	input	Active-high ON/OFF enable input. V_EN(H) ≥ 2V to enable, V_EN(L) ≤ 0.8V to disable; leakage 1µA at 5V. Must not be left floating.
5	IN	power_in	Power input pin, 2.4V to 5.5V operating range (6V absolute maximum). Decouple with a 10µF ceramic capacitor to GND, placed close to the pin, to prevent input droop during hot-plug and to suppress ringing from output short events. UVLO threshold ~2.3V with 0.1V hysteresis.

Key specifications

Parameter	Value
Manufacturer	Silergy Corp
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

SY6280AAC
SY6280AAAC

CAD (KiCad official)

Symbol: SY6280AAAC
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sy6280aaac.step`	85 KB	You want the bare part, or you mark your own boards.
`sy6280aaac-etched.step`	2.0 MB	You want the part with `SY6280AAAC` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 491 faces against 102 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 (10 pp, sha256 cf79e56d5b13e99c, retrieved 2026-08-17, tier: manufacturer)
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