component
LM1117S-1.8
Public Made by Adomby adom
HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM1117S-1.8
HTC Korea TAEJIN Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3
LM1117S-1.8 from HTC Korea TAEJIN Tech, in a SOT-223-3. 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; on the fixed 1.8 V LM1117S-1.8 it serves as the ground return, and the datasheet gives no separate pin current limit for it beyond the adjustment pin current of 50 µA typical and 120 µA maximum on the ADJ version. |
| 2 | VOUT | power_out | Regulated output at 1.8 V nominal, specified at 1.764 V to 1.836 V over 0 to 125 °C for 0 mA to 1 A load with VIN of 3.3 V to 12 V, with 1 A current limit of 1000 to 1600 mA and 10 µF output capacitor recommended for stability. |
| 3 | VIN | power_in | Unregulated input supply; the datasheet gives a maximum DC input voltage of 20 V, a specified operating input voltage of 12 V, and a dropout of 1.2 V typical at 1 A output current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | SOT-223-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM1117S-1.8 - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files:
lm1117s-1-8-etched.step/lm1117s-1-8-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm1117s-1-8.step/lm1117s-1-8.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (12 pp, sha256
44a7a7aa0771cacd, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).