78L15
Public Unreviewedby Ray
UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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markdown78L15
UMW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
78L15 from UMW, in a SOT-89. 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 | OUTPUT | power_out | Regulated +15V output, up to 100 mA. Recommended output capacitor Co = 0.1 µF ceramic to ground for stability. |
| 2 | GND | power_in | Common ground reference for input and output. Carries the quiescent current (typ 2.2 mA, max 6 mA for 78L15). |
| 3 | INPUT | power_in | Unregulated DC input. Absolute maximum Vi = 35 V. Recommended input capacitor C1 = 0.33 µF to ground if the regulator is located far from the power-supply filter. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-89 |
| Category | PMIC |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
78L15 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
78l15.step |
57 KB | You want the bare part, or you mark your own boards. |
78l15-etched.step |
896 KB | You want the part with 78L15 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 243 faces against 42 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (22 pp, sha256
3eeae843c9f51425, 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).