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SSP1117-ADJ

Public Unreviewed

by Ray

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

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Contents

README

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SSP1117-ADJ

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

SSP1117-ADJ from Shanghai Siproin Microelectronics, in a SOT-223. 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 ADJ input Adjust pin. Feedback input for the internal 1.25V reference; connect the top of the external resistor divider (R2 to Vout, R1 to GND) so that Vout = 1.25 * (1 + R2/R1) + IAdj*R2. IAdj is typically ~50uA. A bypass capacitor to GND on this pin improves ripple rejection.
2 Vout power_out Regulated output voltage, up to 1.0A. For the ADJ version, output is programmable from 1.25V to 12V. Recommend a 10uF tantalum capacitor to GND for stability.
3 Vin power_in Unregulated input supply, up to 20V absolute maximum. Recommend a 10uF tantalum bypass capacitor to GND. Dropout voltage is 1.3V typical at 1A load.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SSP1117-ADJ-SOT223
  • SSP1117-ADJ-TO-252

CAD (KiCad official)

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

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ssp1117-adj.step 64 KB You want the bare part, or you mark your own boards.
ssp1117-adj-etched.step 1.6 MB You want the part with SSP1117-ADJ already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 413 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 Siproin Microelectronics datasheet (9 pp, sha256 4c5a7e0e0fbea4b3, 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