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SK1117A-3.3

Public Made by Adom

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Shikues Linear Voltage Regulators (LDO), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SK1117A-3.3

Shikues · Linear Voltage Regulators (LDO) · SOT-89

SK1117A-3.3 from Shikues, in a SOT-89. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference pin (labelled ADJ/GND; on the fixed 3.3V version it is ground, with the 10uF input and output capacitors returned to it).
2 VOUT power_out Regulated 3.3V output (3.234V to 3.366V at Tj=25C) delivering up to 800mA, with a 10uF output capacitor in the typical application.
3 VIN power_in Supply input with absolute maximum 18V and recommended maximum 16V, with a 10uF input capacitor in the typical application.

Key specifications

Parameter Value
Manufacturer Shikues
Package SOT-89
Category Power Management ICs
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output Voltage (SK1117A-3.3V) Vout 3.234 3.3 3.366 V 0≤Iout≤800mA, Vin=5.3V 3
Load Regulation (SK1117A-3.3V) ΔVout 10 30 mV Vin =4.8V, 10mA≤Iout≤800mA 3
Line Regulation (SK1117A-3.3V) ΔVout 0.1 0.2 %/V Iout=10mA, 4.8V≤Vin≤16V 3
Dropout Voltage Vdrop 1.23 1.3 V Iout=100mA 4
Dropout Voltage Vdrop 1.3 1.5 V Iout=800mA 4
Current Limit Ilimit 800 mA Vin-Vout=2V, Tj=25°C 4
Minimum Load Current Imin 2 10 mA 4
Quiescent Current (SK1117A-3.3V) Iq 2 5 mA SK1117A-3.3V, Vin =12V 4
Temperature Coefficient ΔV/ΔT -100 100 ppm 4
Thermal Resistance Junction-to-Case JC 100 °C/W SOT-89-3 4
Max Input Voltage 18 V 2
Max Operating Junction Temperature Tj 150 °C 2
Ambient Temperature Ta -40 85 °C 2
Power Dissipation 500 mW SOT89-3 2
Storage Temperature Ts -40 150 °C 2
Lead Temperature 260 °C 10S 2
Input Voltage Range (recommended) 16 V 2
Operating Junction Temperature (recommended) Tj -40 85 °C 2

CAD (KiCad official)

  • Symbol: SK1117A-3.3
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: sk1117a-3-3-etched.step / sk1117a-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sk1117a-3-3.step / sk1117a-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: Shikues datasheet (6 pp, sha256 4594d4ae35be2f58, retrieved 2026-11-05, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF