component
SCT9330STER
Public Unreviewedby Ray
SCT DC-DC Converters, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownSCT9330STER
SCT · DC-DC Converters · ESOP-8
SCT9330STER 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 | power_in | Bootstrap supply for the high-side MOSFET gate driver. Connect a 0.1µF or greater ceramic capacitor between BOOT and SW to provide the boosted gate-drive voltage. |
| 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 enables the device. Supports direct connection to VIN up to 34V; precision UVLO thresholds at 1.18V rising / 1.1V falling for programmable UVLO via a resistor divider. |
| 4 | NC | unconnected | Not connected. Leave floating or tie to GND per PCB layout preference. |
| 5 | FB | input | Buck converter output feedback sensing input. Connect a resistor divider from VOUT to FB; the device regulates FB to the internal 0.8V (±1%) reference. |
| 6 | NC | unconnected | Not connected. Leave floating or tie to GND per PCB layout preference. |
| 7 | NC | unconnected | Not connected. Leave floating or tie to GND per PCB layout preference. |
| 8 | SW | output | Switching node of the buck converter; the source of the high-side MOSFET and drain of the low-side MOSFET. Connect to the output inductor; absolute max range -0.3V to 34V. |
| 9 | GND (Thermal Pad) | power_in | Exposed thermal pad; serves as device GND and the primary heat-dissipation path. Must be soldered to the 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.
SCT9330STER
CAD (KiCad official)
- Symbol:
SCT9330STER - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
sct9330ster.step |
125 KB | You want the bare part, or you mark your own boards. |
sct9330ster-etched.step |
2.7 MB | You want the part with SCT9330STER already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 639 faces against 152 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 (21 pp, sha256
4aa041d83fa1ee6a, 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).