component

LM1117T-1.2

Public Made by Adom

by adom

HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm1117t-1.2factory-2.0.0extractor-text

Verified LM1117T-1.2

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LM1117T-1.2 · TO-220 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 12-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TO-220-3_Vertical
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-adtciu2q/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ lm1117t-1-2.kicad_sym✓ lm1117t-1-2.kicad_mod✓ lm1117t-1-2.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

LM1117T-1.2

HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

LM1117T-1.2 from HGSEMI, in a TO-220. 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/ADJ power_in Ground/adjust pin (listed as --/O), used as the ground reference for the regulator.
2 VOUT power_out Output voltage pin; the fixed 1.2V output is delivered here, with output accuracy of 2% for fixed-voltage versions.
3 VIN power_in Input operating voltage pin; the datasheet gives a recommended input voltage of 15V and an absolute maximum of 20V.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-220
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 (TJ=25℃) VOUT 1.176 1.2 1.224 V IOUT=10mA, VIN=3.2V, TJ=25℃; 10mA≤IOUT≤1A, 3.0V≤VIN≤10V 4
Output voltage (full operating temperature range) VOUT 1.152 1.2 1.248 V 10mA≤IOUT≤1A, 3.0V≤VIN≤10V; TJ=-40~125℃ (table temperature range) 4
Line regulation Rline 3 7 mV VINMIN≤VIN≤12V, VOUT=Fixed/Adj, IOUT=10mA 4
Load regulation Rload 6 12 mV 10mA≤IOUT≤1A, VOUT=Fixed/Adj 4
Quiescent current Iq 5 10 mA 4.25V≤VIN≤6.5V 4
Ripple rejection PSRR 60 75 dB fRIPPLE=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP 4
Adjust pin current Iadj 60 120 µA 4
Adjust pin current change 0.2 5 µA 0≤IOUT≤1A, 1.4V≤VIN-VOUT≤10V 4
Current limit Ilimit 1.2 1.4 1.5 A 4
Input operating voltage VIN 20 V 3
Pin temperature (soldering 10 s), TO-263/TO-220 TLEAD 245 °C Soldering 10 s 3
Operating junction temperature range (absolute maximum) TJ 150 °C 3
Storage temperature TSTG -65 150 °C 3
ESD capability ESD 2000 V 3
Input voltage (recommended) VIN 15 V 4
Operating junction temperature range (recommended) TJ -40 125 °C 4
Thermal resistance junction-to-ambient, TO-220-3 θJA 60 ℃/W No heatsink (无散热片), TO-220-3 4
Thermal shutdown point TSD 150 ℃ 4
Output voltage temperature stability TSOUT 0.3 % 4
Temperature stability 0.5 % 4
Long-term stability 0.3 % Tamb=125°C, 1000Hrs 4
RMS output noise 0.003 % % of VOUT, 10Hz≤f≤10kHz 4

CAD (KiCad official)

  • Symbol: LM1117T-1.2
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: lm1117t-1-2-etched.step / lm1117t-1-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1117t-1-2.step / lm1117t-1-2.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (12 pp, sha256 d74b45f15837cbc2, retrieved 2026-11-05, 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