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GN1117-3.3V

GN Semic · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3L

GN1117-3.3V from GN Semic, 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 Pin labelled ADJ/GND in the datasheet pin table (可调端/地, adjustable terminal/ground); it is the adjust terminal for the GN1117-ADJ and the ground connection for the fixed-voltage versions.
2 VOUT power_out Regulated output terminal; the datasheet gives a maximum output current of 1 A (IOMAX at VIN-VOUT=2V, 1.2 A typical limit) and a dropout of 1.45 V typical to 1.65 V maximum at IOUT=1 A.
3 VIN power_in Input terminal; the recommended input voltage is 2.75 V to 15 V and the absolute maximum supply voltage is 18 V.

Key specifications

Parameter Value
Manufacturer GN Semic
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
Load regulation ∆VOUT 0.1 0.3 % VIN-VOUT=2V, 10mA≤Io≤1A 3
Input-output dropout voltage VIN-VOUT 1.45 1.65 V IOUT=1A, ∆VOUT=1% 3
Maximum output current IOMAX 1 1.2 A VIN-VOUT=2V 3
Adjust pin current change ∆IADJ 0.2 5 uA 1.5V≤VIN-VOUT≤12V, 10mA≤IOUT≤1A 3
Long-term stability 0.3 1 % Tamb=125℃, 1000Hrs 3
Reference voltage (output voltage for GN1117-3.3) VREF 3.234 3.3 3.366 V Io=10mA, VIN-VOUT=1.5V 3
Input voltage (absolute maximum) VIN 18 V 2
Operating ambient temperature Tamb -40 85 ℃ 2
Storage temperature Tstg -65 150 ℃ 2
Maximum junction temperature TJ 150 ℃ 2
Soldering temperature TL 260 ℃ 10 s 2
Input voltage (recommended) VIN 2.75 15 V 2
Output current (recommended) IOUT 10 1000 mA 2
Junction-to-ambient thermal resistance, SOT223 θJA 53 ℃/W SOT223 package 2
Junction-to-case thermal resistance, SOT223 θJC 4 ℃/W SOT223 package 2

CAD (KiCad official)

  • Symbol: GN1117-3.3V
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3L (KiCad packages3D, STEP)
  • 3D model files: gn1117-3-3v-etched.step / gn1117-3-3v-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gn1117-3-3v.step / gn1117-3-3v.glb are the bare package body.

Provenance

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

  • Datasheet: GN Semic datasheet (10 pp, sha256 a64e2f48925570a9, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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