SCT9336STER from SCT, in a ESOP-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	BOOT	passive	Bootstrap supply for the high-side power MOSFET gate driver. Connect a ≥0.1µF ceramic capacitor between BOOT and SW to develop the high-side gate drive voltage above the switching node.
2	VIN	power_in	Power supply input, 3.8V to 28V operating range (absolute max 34V). Must be locally bypassed with a low-ESR ceramic capacitor close to the pin.
3	EN	input	Enable logic input. Floating (internal pull-up) enables the device; can be tied directly to VIN (up to 34V absolute max). Precision UVLO thresholds: 1.18V rising / 1.1V falling for programmable UVLO via a resistor divider.
4	NC	unconnected	No internal connection. Leave floating or tie to ground per PCB layout convenience.
5	FB	input	Buck converter output feedback sensing input. Connect a resistor divider from VOUT to FB to program the output voltage; internal reference is 0.8V ±1% (0.792V-0.808V). Absolute max 5.5V.
6	NC	unconnected	No internal connection. Leave floating or tie to ground per PCB layout convenience.
7	NC	unconnected	No internal connection. Leave floating or tie to ground per PCB layout convenience.
8	SW	power_out	Switching node of the buck converter; junction of the internal high-side and low-side MOSFETs. Connect to the external inductor. Absolute max -0.3V to 34V.
9	GND	power_in	Exposed thermal pad - device ground return and primary heat dissipation path. Must be soldered to a PCB ground plane for proper electrical operation and thermal performance.

Key specifications

Parameter	Value
Manufacturer	SCT
Package	ESOP-8
Category	PMIC
Pins	9

Ordering variants

Same part, different packaging or reel option.

SCT9336STER

CAD (KiCad official)

Symbol: SCT9336STER
Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
3D model: ESOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sct9336ster.step`	193 KB	You want the bare part, or you mark your own boards.
`sct9336ster-etched.step`	2.4 MB	You want the part with `SCT9336STER` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 565 faces against 63 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: SCT datasheet (20 pp, sha256 4d5d86a19a2bc8e9, 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