component
L79L12ACUTR
Public Unreviewedby Ray
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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Symbol & Footprint
Schematic Symbol
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markdownL79L12ACUTR
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
L79L12ACUTR from STMicroelectronics, 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 | GND | power_in | Ground / common reference. Since this is a NEGATIVE regulator, GND is the most positive terminal of the device relative to VIN and VOUT. |
| 2 | VIN | power_in | Unregulated negative input voltage. For the -12 V variant (L79L12AC) operating range is approximately -14.5 V to -27 V; absolute maximum is -35 V. A 0.33 µF input capacitor to GND is recommended. |
| 3 | VOUT | power_out | Regulated -12 V negative output (typ. -12 V, min -11.5 V, max -12.5 V at TJ = 25 °C). Sources up to 100 mA. A 0.1 µF output capacitor to GND is recommended for stability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-89-3 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
L79L12ACUTRL79L12ACZ-TRL79L12ACD13TR
CAD (KiCad official)
- Symbol:
L79L12ACUTR - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (24 pp, sha256
ba2a02bb5533f64a, retrieved 2026-08-17, tier: manufacturer) - 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).