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LM1117RS-1.2

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HTC Korea TAEJIN Tech Linear Voltage Regulators (LDO), TO-252-2(DPAK). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icslm1117rs-1.2factory-2.0.0extractor-text

Verified LM1117RS-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: LM1117RS-1.2 · TO-252-2(DPAK) · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 13-page datasheet
  • •distributor (warn): no ['mouser'] number
  • ✓family: TO-252-2
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-d9tl_2w0/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✓ lm1117rs-1-2.kicad_sym✓ lm1117rs-1-2.kicad_mod✓ lm1117rs-1-2.step
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Contents

README

markdown

LM1117RS-1.2

HTC Korea TAEJIN Tech · Linear Voltage Regulators (LDO) · TO-252-2(DPAK)

LM1117RS-1.2 from HTC Korea TAEJIN Tech, in a TO-252-2(DPAK). 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 On the fixed 1.2V version this pin is ground (the datasheet labels it ADJ/GND, with the adjust function applying only to ADJ versions).
2 VOUT power_out Regulated 1.2V output, which requires an output capacitor of 10uF or larger for stability.
3 VIN power_in Unregulated input supply with a maximum input voltage of 20V and an operating input voltage of 12V.

Key specifications

Parameter Value
Manufacturer HTC Korea TAEJIN Tech
Package TO-252-2(DPAK)
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
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
Output Voltage VO 1.176 1.2 1.224 V VIN = 2.7V, IO = 10mA 5
Output Voltage VO 1.152 1.248 V VIN = 2.7V to 12V, IO = 0mA to 1A (TJ = 0 ~ 125℃) 5
Line Regulation ΔVLINE 0.1 0.2 % IO = 10mA, VIN = 2.7V to 12V 5
Load Regulation ΔVLOAD 0.2 0.4 % IO = 10mA to 1A, VIN = 3.2V 5
Operating Input Voltage VIN 12 V 5
Quiescent Current ID 5 10 ㎃ VIN - VO = 5V 5
Supply Voltage Rejection SVR 60 75 dB IO = 1A, f = 120Hz, VIN - VO = 1.5V, VRIPPLE = 1VPP 5
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
Thermal Resistance Junction-To-Ambient / TO-252 θJA-TO-252 105 °C/W No heat sink / No air flow / No adjacent heat source / TA=25°C 12
Current Limit IO 1000 ㎃ VIN - VO = 5V 5
Output Noise (%VO) EN 0.003 % B = 10Hz to 10kHz, TJ = 25℃ 5
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

CAD (KiCad official)

  • Symbol: LM1117RS-1.2
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: lm1117rs-1-2-etched.step / lm1117rs-1-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1117rs-1-2.step / lm1117rs-1-2.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 e809b301166d1a79, retrieved 2026-11-05, 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