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Ray Publish 0.1.0 6107a56 17d ago

LM1117GS-1.5

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

LM1117GS-1.5 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-voltage LM1117GS-1.5 and the adjust input on the ADJ version, with adjustment pin current specified at 50 µA typical and 120 µA maximum.
2 VOUT power_out Output voltage pin: it delivers the regulated output (1.5 V nominal for the LM1117GS-1.5) at up to 1 A, and the datasheet requires an output capacitor of 10 µF or larger for stability.
3 VIN power_in Input voltage pin: it supplies the regulator with an absolute maximum input supply voltage of 20 V and an operating input voltage of 12 V maximum, with a dropout voltage of 1.2 V at 1 A.

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 1.485 1.5 1.515 V VIN = 3.0V, IO = 10mA 5
Output Voltage VO 1.47 1.53 V VIN = 3.0V to 12V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 5
Line Regulation ΔVLINE 0.1 0.2 % IO = 10mA, VIN = 3.0V to 12V 5
Load Regulation ΔVLOAD 0.2 0.4 % IO = 10mA to 1A, VIN = 3.5V 5
Operating Input Voltage VIN 12 V 5
Quiescent Current ID 5 10 mA VIN - VO = 5V 5
Current Limit IO 1000 mA VIN - VO = 5V 5
Output Noise (%VO) EN 100 uV B = 10Hz to 10kHz, TJ = 25℃ 5
Supply Voltage Rejection SVR 60 75 dB IO = 1A, f = 120Hz, VIN - VO = 3V, VRIPPLE = 1VPP 5
Dropout Voltage VD 1.2 1.3 V IO = 1A 7
Temperature Stability 0.5 % 7
Long Term Stability 0.3 % 1000 hrs, TJ = 125℃ 7
Thermal Regulation 0.003 %/W TA = 25℃ 30ms Pulse 7
Input Supply Voltage VIN 20 V 1
Output Current IOUT 1 A 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-223-3L θJA-SOT-223 140 °C/W No heat sink / No air flow / No adjacent heat source / TA=25°C 11

CAD (KiCad official)

  • Symbol: LM1117GS-1.5
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3L (KiCad packages3D, STEP)
  • 3D model files: lm1117gs-1-5-etched.step / lm1117gs-1-5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1117gs-1-5.step / lm1117gs-1-5.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 1fdc32896d81256a, 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