RY8411 from RYCHIP, 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	Bootstrap pin. A capacitor connected between SW and BS forms a floating supply across the high-side switch driver. Absolute max BS voltage is 7V above SW.
2	GND	power_in	Ground pin. Common return for the IC and reference for all voltages.
3	FB	input	Adjustable-version feedback input. Connect to the center point of the external resistor divider that sets VOUT. Internal reference (VFB) is 0.800V typical (0.780-0.820V). Absolute max 6V.
4	EN	input	Enable input. Drive high (>1.3V typ) to enable the IC; drive low (<0.9V) to disable and enter micro-power shutdown. Absolute max is (VIN + 0.3V) to 42V.
5	IN	power_in	Power supply input. Operating range 4V to 38V; absolute max 42V. Bypass with a ceramic capacitor placed close to this pin.
6	SW	power_out	Switching node. Connects to the external inductor and to the bootstrap capacitor. Absolute max −0.3V to VIN+1V (−5V to VIN+2V for 10ns transients).

Key specifications

Parameter	Value
Manufacturer	RYCHIP
Package	SOT-23-6
Category	PMIC
Pins	6

Ordering variants

Same part, different packaging or reel option.

RY8411HOYLL

CAD (KiCad official)

Symbol: RY8411
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
`ry8411.step`	97 KB	You want the bare part, or you mark your own boards.
`ry8411-etched.step`	1.2 MB	You want the part with `RY8411` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 322 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: RYCHIP datasheet (13 pp, sha256 fff802a5d18d557a, 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