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LM1117GS-3.3

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HTC Korea TAEJIN Tech Linear Voltage Regulators (LDO), SOT-223-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM1117GS-3.3

HTC Korea TAEJIN Tech · Linear Voltage Regulators (LDO) · SOT-223-3L

LM1117GS-3.3 from HTC Korea TAEJIN Tech, 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 Adjustable/Ground pin: it is the ground reference on the fixed-output versions, and on the ADJ version it is the adjust terminal with an adjustment pin current of 50 uA typical and 120 uA maximum at IO = 100 mA.
2 VOUT power_out Output voltage pin: on the 3.3V version it is specified at 3.267 V to 3.333 V (VIN = 4.8V, IO = 10 mA) and 3.234 V to 3.366 V over IO = 0 to 1 A and TJ = 0 to 125 C, with a current limit of 1000 mA and a dropout of 1.2 V at 1 A.
3 VIN power_in Input voltage pin: the absolute maximum input supply voltage is 20 V, and the operating input voltage is stated as 12 V for the 3.3V version.

Key specifications

Parameter Value
Manufacturer HTC Korea TAEJIN Tech
Package SOT-223-3L
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 VO 3.267 3.3 3.333 V VIN = 4.8V, IO = 10mA 7
Output Voltage VO 3.234 3.366 V VIN = 4.8V to 12V, IO = 0mA to 1A, TJ = 0 ~ 125℃ 7
Line Regulation ΔVLINE 0.1 0.2 % IO = 10mA, VIN = 4.8V to 12V 7
Load Regulation ΔVLOAD 0.2 0.4 % IO = 10mA to 1A, VIN = 5.3V 7
Operating Input Voltage VIN 12 V 7
Quiescent Current ID 5 10 mA VIN - VO = 5V 7
Current Limit IO 1000 mA VIN - VO = 5V 7
Output Noise EN 100 uV B = 10Hz to 10kHz, TJ = 25℃ 7
Supply Voltage Rejection SVR 60 75 dB IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP 7
Dropout Voltage VD 1 1.1 V IO = 100mA 8
Dropout Voltage VD 1.1 1.2 V IO = 500mA 8
Dropout Voltage VD 1.2 1.3 V IO = 1A 8
Temperature Stability 0.5 % 8
Long Term Stability 0.3 % 1000 hrs, TJ = 125℃ 8
Thermal Regulation 0.003 %/W TA = 25℃, 30ms Pulse 8
Input Supply Voltage VIN 20 V 1
Lead Temperature TSOL 260 ℃ 1
Storage Temperature Range TSTG -65 150 ℃ 1
Operating Junction Temperature Range TOPR -40 125 ℃ 1
Thermal Resistance Junction-To-Ambient (SOT-223) θJA-SOT-223 137 °C/W No heat sink, no air flow, no adjacent heat source, TA = 25°C 12

CAD (KiCad official)

  • Symbol: LM1117GS-3.3
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3L (KiCad packages3D, STEP)
  • 3D model files: lm1117gs-3-3-etched.step / lm1117gs-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1117gs-3-3.step / lm1117gs-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: HTC Korea TAEJIN Tech datasheet (13 pp, sha256 c0037056f6203681, retrieved 2026-10-21, 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