SDH8302STR from Hangzhou Silan Microelectronics, in a SOP-8. 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	SOURCE	power_in	Source of the internal power MOSFET and reference ground for the control circuit. Pins 1 and 2 are tied together internally.
2	SOURCE	power_in	Source of the internal power MOSFET and reference ground for the control circuit. Pins 1 and 2 are tied together internally.
3	FB	input	Feedback current input. Input impedance ~1.15 kΩ. Shutdown current ~1 mA (0.8-1.3 mA); short-circuit protection triggers when IFB < 500 µA; frequency foldback between 830 µA and 930 µA. Maximum feedback current 3 mA.
4	VDD	power_in	Control-circuit supply. Operating range 10-25 V (after startup); startup threshold ~14.3 V, UVLO ~8.9 V, OVP ~28 V, clamp ~30 V, hiccup point ~10.7 V. Absolute max 30 V.
5	DRAIN	power_in	Drain of the internal high-voltage power MOSFET, also used for high-voltage startup current source. BVDSS ≥ 650 V, RDS(on) ~18 Ω, peak drain current 2.8 A pulsed / 0.8 A DC. Pins 5, 6, 7, 8 are tied together internally.
6	DRAIN	power_in	Drain of the internal high-voltage power MOSFET. Pins 5, 6, 7, 8 are tied together internally.
7	DRAIN	power_in	Drain of the internal high-voltage power MOSFET. Pins 5, 6, 7, 8 are tied together internally.
8	DRAIN	power_in	Drain of the internal high-voltage power MOSFET. Pins 5, 6, 7, 8 are tied together internally.

Key specifications

Parameter	Value
Manufacturer	Hangzhou Silan Microelectronics
Package	SOP-8
Category	PMIC
Pins	8

Ordering variants

Same part, different packaging or reel option.

SDH8302STR

CAD (KiCad official)

Symbol: SDH8302STR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sdh8302str.step`	122 KB	You want the bare part, or you mark your own boards.
`sdh8302str-etched.step`	2.6 MB	You want the part with `SDH8302STR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 607 faces against 147 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: Hangzhou Silan Microelectronics datasheet (9 pp, sha256 fd90d6d09284280f, 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