component
78L18
Public Made by Adomby adom
Shikues Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Datasheet-verified pinout, 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
markdown78L18
Shikues · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
78L18 from Shikues, in a SOT-89-3. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VOUT | power_out | Regulated +18 V output, up to 150 mA. A 0.1 uF ceramic capacitor to GND improves transient response but is not required for stability. |
| 2 | GND | power_in | Common ground reference. Must be shared between input and output. Quiescent current of ~3-5.5 mA flows out of this pin. |
| 3 | VIN | power_in | Unregulated input supply, typically at least VOUT + 2.0 V (dropout), maximum 30 V. Bypass with 0.33 uF close to the pin for stable operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shikues |
| Package | SOT-89-3 |
| Category | PMIC |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
78L18 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
78l18-etched.step/78l18-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);78l18.step/78l18.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shikues datasheet (7 pp, sha256
2f2bf1f5a553c543, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).