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LM1117GS-ADJ

Public Made by Adom

by adom

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-ADJ

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

LM1117GS-ADJ 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 input Adjustment pin for the ADJ version; the output voltage is set by an external R1/R2 divider and the adjust pin current is specified at 50 µA typ and 120 µA max (VIN - VREF = 1.5V to 12V, IO = 100mA).
2 VOUT power_out Regulated output voltage; the datasheet requires an output capacitor of 10µF or larger for stability and rates the output current at 1A (current limit 1000 mA min/typ at VIN - VREF = 5V).
3 VIN power_in Input supply; operating input voltage is specified up to 12V (15V for the 5.0V fixed version) and the absolute maximum input supply voltage is 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
Reference Voltage VREF 1.238 1.25 1.262 V VIN = 5V, IO = 10mA 4
Reference Voltage (over line and load) VREF 1.219 1.281 V IO = 10mA to 1A, VIN - VREF = 1.5V to 13.75V (TJ = 0 ~ 125°C) 4
Line Regulation ΔVLINE 0.1 0.2 % IO = 10mA, VIN - VREF = 1.5V to 12V 4
Load Regulation ΔVLOAD 0.2 0.4 % IO = 10mA to 1A, VIN - VREF = 2V 4
Adjustment pin current IADJ 50 120 µA VIN - VREF = 1.5V to 12V, IO = 100mA 4
Adjustment Pin Current Change ΔIADJ 0.5 5 µA VIN - VREF = 1.5V to 12V, IO = 100mA to 1A 4
Minimum Load Current IO(MIN) 5 10 mA VIN = 5V, VREF = 0V 4
Supply Voltage Rejection SVR 60 75 dB IO = 1A, f = 120Hz, VIN - VREF = 3V, VRIPPLE = 1VPP 4
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
Operating Input Voltage VIN 12 V ADJ version 4
Input Supply Voltage (absolute maximum) VIN 20 V 1
Lead Temperature TSOL 260 °C 1
Storage Temperature Range TSTG -65 150 °C 1
Operating Junction Temperature Range TOPR -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
Current Limit IO 1000 mA VIN - VREF = 5V 4
Output Noise (%VO) eN 0.003 % B = 10Hz to 10kHz, TJ = 25°C 4
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

CAD (KiCad official)

  • Symbol: LM1117GS-ADJ
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3L (KiCad packages3D, STEP)
  • 3D model files: lm1117gs-adj-etched.step / lm1117gs-adj-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1117gs-adj.step / lm1117gs-adj.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 2ae6727219b061bd, 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