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LM1117GS-1.8

Public Made by Adom

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HTC Korea TAEJIN Tech 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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LM1117GS-1.8

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

LM1117GS-1.8 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 GND power_in Ground reference for the fixed 1.8V version; the same pin is the ADJ (adjust) terminal on the adjustable version, which does not apply to LM1117GS-1.8.
2 VOUT power_out Regulated 1.8V output; an output capacitor of 10µF or larger is needed for output stability.
3 VIN power_in Input voltage to the regulator, with operating input voltage up to 12V and an absolute maximum input of 20V.

Key specifications

Parameter Value
Manufacturer HTC Korea TAEJIN Tech
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 VO 1.782 1.8 1.818 V VIN = 3.3V, IO = 10mA 5
Output Voltage VO 1.764 1.836 V VIN = 3.3V to 12V, IO = 0mA to 1A, TJ = -40°C ~ 125°C 5
Line Regulation ΔVLINE 0.1 0.2 % IO = 10mA, VIN = 3.3V to 12V 5
Load Regulation ΔVLOAD 0.2 0.4 % IO = 10mA to 1A, VIN = 3.8V 5
VIN Operating Input Voltage VIN 12 V 5
Ground Pin Current IGND 5 10 mA VIN = VO +1.5V, IO = 10 mA to 1A 5
Supply Voltage Rejection SVR 60 75 dB IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP 5
Dropout Voltage VD 1 1.1 V IO = 100mA 7
Dropout Voltage VD 1.1 1.2 V IO = 500mA 7
Dropout Voltage VD 1.2 1.3 V IO = 1A 7
Input Supply Voltage VIN 20 V 1
Lead Temperature (Soldering, 10 seconds) TSOL 260 °C 10 seconds soldering 1
Storage Temperature Range TSTG -65 150 °C 1
Operating Junction Temperature Range TJOPR -40 125 °C 1
Thermal Resistance Junction-To-Ambient / SOT-223-3L θJA-SOT-223 140 °C/W No heat sink, no air flow, no adjacent heat source, TA = 25°C 11
Thermal Resistance Junction-To-Case / SOT-223-3L θJC-SOT-223 18 °C/W No heat sink, no air flow, no adjacent heat source, TA = 25°C 11
Current Limit IO 1000 mA VIN - VO = 5V 5
Output Noise (%VO) eN 100 µV B = 10Hz to 10kHz, TJ = 25°C 5
Temperature Stability 0.5 % 7
Long Term Stability 0.3 % 1000 hrs, TJ = 125°C 7
Thermal Regulation 0.003 %/W TA = 25°C, 30ms Pulse 7
Thermal Shutdown Junction Temperature TSD 165 °C 7
Thermal Shutdown Hysteresis TSD(HYS) 10 °C 7

CAD (KiCad official)

  • Symbol: LM1117GS-1.8
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3L (KiCad packages3D, STEP)
  • 3D model files: lm1117gs-1-8-etched.step / lm1117gs-1-8-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1117gs-1-8.step / lm1117gs-1-8.glb are the bare package body.

Provenance

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

  • Datasheet: HTC Korea TAEJIN Tech datasheet (12 pp, sha256 d606a94cad4af181, 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