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SSP1117-3.3V

Public Unreviewed

by Ray

Shanghai Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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SSP1117-3.3V

Shanghai · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3

SSP1117-3.3V from Shanghai, in a SOT-223-3. 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 GND power_in Ground return for the regulator. On the fixed-output SSP1117-3.3V this pin is the device ground reference; on the ADJ variant the same pin becomes the ADJ feedback node.
2 VOUT power_out Regulated 3.3V output. Sources up to 1A load current. Requires a 10uF tantalum output capacitor for stability.
3 VIN power_in Unregulated input supply. Recommended maximum 20V, absolute max 30V. For the 3.3V output, minimum operating Vin is 4.8V with a 10uF tantalum bypass capacitor recommended.
4 TAB power_out SOT-223 heat-slug tab, internally connected to VOUT. Solder to a copper pour to reduce thermal resistance (package thermal resistance is 20 °C/W).

Key specifications

Parameter Value
Manufacturer Shanghai
Package SOT-223-3
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • SSP1117-3.3VL
  • SSP1117-3.3VO

CAD (KiCad official)

  • Symbol: SSP1117-3.3V
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ssp1117-3-3v.step 64 KB You want the bare part, or you mark your own boards.
ssp1117-3-3v-etched.step 1.9 MB You want the part with SSP1117-3.3V already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 474 faces against 75 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: Shanghai datasheet (9 pp, sha256 4548d0eb79d83846, 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