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SL1117-3.3

Public Made by Adom

by adom

Slkor SLKORMICRO Elec Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SL1117-3.3

Slkor SLKORMICRO Elec · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3L

SL1117-3.3 from Slkor SLKORMICRO Elec, in a SOT-223-3L. 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 ADJ/GND power_in Adjust/ground pin: on the adjustable version it is the ADJ terminal (adjust pin current 50 to 120 uA typical/max range given), and on the fixed-voltage version (SL1117-3.3 is fixed) it is the ground connection.
2 VOUT power_out Regulated output; a minimum 10uF tantalum (or 50uF aluminum electrolytic) output capacitor with ESR not exceeding 0.5 ohm is required from VOUT to GND for stability.
3 VIN power_in Unregulated input supply; maximum input voltage is 18V, and a 10uF tantalum input bypass capacitor is recommended.

Key specifications

Parameter Value
Manufacturer Slkor SLKORMICRO Elec
Package SOT-223-3L
Category Power Management (PMIC)
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 VOUT 3.234 3.3 3.366 V 10mA≤IOUT≤1A, VIN=Vout+2V 3
Line regulation 0.15 0.3 % (VOUT+ 1.5V)≤VIN≤12V,IOUT= 10mA 3
Load regulation 0.2 0.5 % (VIN-VOUT) = 2V, 10mA≤ IOUT≤1A 3
Dropout voltage 1.3 1.4 V DVREF= 1%,IOUT=1A 3
Minimum load current 3 10 mA 1.5V≤(VIN-VOUT)≤12V 3
Quiescent current 3 10 mA VIN= VOUT+1.25V 3
Ripple rejection 60 70 dB f = 120Hz, COUT= 22uF Tantalum, (VIN-VOUT) = 3V, IOUT=1A 3
Thermal regulation 0.008 0.04 %/W TA= 25℃, 30ms pulse 3
Long-term stability 0.3 1 % TA= 125℃, 1000hrs. 3
Input voltage (absolute maximum) VIN 18 V 2
Operating junction temperature range TJ -40 125 ℃ 2
Thermal resistance junction to ambient (SOT-223) θJA 135 ℃/W 2
Maximum power dissipation (SOT-223) PD 750 mW 2
Input voltage (recommended) VIN 18 V 2
DC output current (recommended, SOT-223) IOUT 600 mA SOT-223 2
Current limit 1.2 A (VIN-VOUT)=2V 3
Temperature stability 0.5 % 3
RMS output noise (% of VOUT) 0.003 % TA= 25℃, 10Hz≤ f ≤10kHz 3
Thermal resistance, junction to case (SOT-223) 15 ℃/W 3
Thermal shutdown junction temperature 150 ℃ Junction temperature 3
Thermal shutdown hysteresis 10 ℃ 3

CAD (KiCad official)

  • Symbol: SL1117-3.3
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3L (KiCad packages3D, STEP)
  • 3D model files: sl1117-3-3-etched.step / sl1117-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sl1117-3-3.step / sl1117-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: Slkor SLKORMICRO Elec datasheet (9 pp, sha256 09661368f611eb87, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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