L79L05ABUTR

@@ -0,0 +1,56 @@+# L79L05ABUTR++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3++L79L05ABUTR 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 return. Reference for both input and output voltages. On the L79L negative regulator, GND is the most positive terminal in typical operation (VIN and VOUT are both negative with respect to this pin). |+| 2 | VIN | power_in | Unregulated negative DC input. Absolute maximum -30 V for the -5 V version. Bypass to GND with a 0.33 µF capacitor located close to the pin. Note: in SOT-89 the metal tab/heatsink slug is electrically connected to this pin. |+| 3 | VOUT | power_out | Regulated -5 V negative output. Delivers up to 100 mA (internally current-limited, thermally protected). Bypass to GND with a 0.1 µF output capacitor for stability and transient response. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-89-3 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `L79L05ABUTR`+- `L79L05ABUTRL79L05ACUTR`+- `L79L05ABUTRL79L12ACUTR`+- `L79L05ABUTRL79L15ACUTR`+- `L79L05ABUTRL79L05ACZ`+- `L79L05ABUTRL79L05ABZ-AP`+- `L79L05ABUTRL79L08ACZ-AP`+- `L79L05ABUTRL79L05ACZ-TR`+- `L79L05ABUTRL79L12ACZ-TR`+- `L79L05ABUTRL79L05ABD13TR`+- `L79L05ABUTRL79L05ACD13TR`+- `L79L05ABUTRL79L08ACD13TR`+- `L79L05ABUTRL79L12ACD13TR`+- `L79L05ABUTRL79L15ABD13TR`+- `L79L05ABUTRL79L15ACD13TR`++## CAD (KiCad official)++- Symbol: `L79L05ABUTR`+- 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](https://www.st.com/resource/en/datasheet/l79l05abutr.pdf) (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).++[Datasheet PDF](docs/l79l05abutr-datasheet.pdf)

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