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SK1117-2.5

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by Ray

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

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Datasheet

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Contents

README

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SK1117-2.5

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

SK1117-2.5 from Shikues, 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 GND power_in Ground reference pin (labeled VSS/ADJ in the pin table; on the fixed 2.5V variant this pin serves as the device ground, per the fixed-version application circuit on page 5).
2 VOUT power_out Regulated 2.5V output. Delivers up to 1A with 2.45V min / 2.55V max at Vin=3.8V. Requires a 10uF tantalum output capacitor for stability.
3 VIN power_in Unregulated input voltage. Typical 15V, maximum 18V absolute. For 2.5V output, minimum Vin is approximately 3.6V (2.5V + 1.1V dropout at 1A). Requires a 10uF tantalum bypass capacitor.
4 VOUT power_out Regulated 2.5V output (SOT-223 tab). Electrically connected to pin 2; also serves as the primary thermal path to the PCB copper pour.

Key specifications

Parameter Value
Manufacturer Shikues
Package SOT-223
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • SK1117-2.5

CAD (KiCad official)

  • Symbol: SK1117-2.5
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Shikues datasheet (10 pp, sha256 e3e5f9a414ebb08b, 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