component
LDK120M18R
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LDK120M18R
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L
LDK120M18R from STMicroelectronics, in a SOT-23-5L. 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 | IN | power_in | Input supply voltage, rated 1.9 to 5.5 V operating range with absolute maximum -0.3 to 7 V |
| 2 | GND | power_in | Ground, common reference |
| 3 | EN | input | Logic control input; Low ≤ 0.4 V = shutdown mode, High ≥ 1.2 V = active mode |
| 4 | BYP | passive | Bypass capacitor connection for noise reduction on fixed version, maximum voltage 2 V, may be left floating if not used |
| 5 | OUT | power_out | Regulated output voltage providing 1.8 V ± 2.0% at 25 °C with guaranteed 200 mA output current capability |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-5L |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
LDK120M18R - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
ldk120m18r-etched.step/ldk120m18r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ldk120m18r.step/ldk120m18r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (24 pp, sha256
1684d802fa69801e, retrieved 2026-10-06, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).
# LDK120M18R
**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L
LDK120M18R from STMicroelectronics, in a SOT-23-5L. 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 | IN | power_in | Input supply voltage, rated 1.9 to 5.5 V operating range with absolute maximum -0.3 to 7 V |
| 2 | GND | power_in | Ground, common reference |
| 3 | EN | input | Logic control input; Low ≤ 0.4 V = shutdown mode, High ≥ 1.2 V = active mode |
| 4 | BYP | passive | Bypass capacitor connection for noise reduction on fixed version, maximum voltage 2 V, may be left floating if not used |
| 5 | OUT | power_out | Regulated output voltage providing 1.8 V ± 2.0% at 25 °C with guaranteed 200 mA output current capability |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-5L |
| Category | Power Management (PMIC) |
| Pins | 5 |
## CAD (KiCad official)
- Symbol: `LDK120M18R`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files: `ldk120m18r-etched.step` / `ldk120m18r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ldk120m18r.step` / `ldk120m18r.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603117744552763392) (24 pp, sha256 `1684d802fa69801e`, retrieved 2026-10-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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](docs/ldk120m18r-datasheet.pdf)