component
SCT9339STER
Public Made by Adomby adom
SCT DC-DC Converters, ESOP-8. Pinout extracted from the datasheet, 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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README
markdownSCT9339STER
SCT · DC-DC Converters · ESOP-8
SCT9339STER 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 0.1uF (or greater) ceramic capacitor between BOOT and SW to generate the boosted gate-drive voltage. |
| 2 | VIN | power_in | Power supply input, 3.8V to 28V. Must be locally bypassed with a ceramic capacitor close to the pin. |
| 3 | EN | input | Enable logic input. Floating the pin enables the device; supports high-voltage input up to VIN so it can be tied directly to VIN for auto-enable. Precision thresholds of 1.18V rising / 1.1V falling allow programmable UVLO via a resistor divider. |
| 4 | NC | unconnected | No internal connection. Leave floating or tie to a convenient node. |
| 5 | FB | input | Buck converter output feedback sensing input. Connect a resistor divider from VOUT to FB to program the output voltage; the device regulates FB to the internal 0.8V (±1%) reference. |
| 6 | NC | unconnected | No internal connection. Leave floating or tie to a convenient node. |
| 7 | NC | unconnected | No internal connection. Leave floating or tie to a convenient node. |
| 8 | SW | power_out | Switching node of the buck converter. Connect to the external inductor; also serves as the bootstrap capacitor return reference for the BOOT pin. |
| 9 | GND (Thermal Pad) | power_in | Exposed thermal pad on the bottom of the ESOP-8 package. Serves as device ground and the heat-dissipation path; must be soldered to the PCB ground plane for proper 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.
SCT9339STER
CAD (KiCad official)
- Symbol:
SCT9339STER - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
sct9339ster-etched.step/sct9339ster-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sct9339ster.step/sct9339ster.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SCT datasheet (19 pp, sha256
d8867bdb12241602, 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).