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78L05G-AB3-R
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UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# 78L05G-AB3-R++**UTC Unisonic Tech** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3++78L05G-AB3-R from UTC Unisonic Tech, 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 | OUT | power_out | Regulated +5V output. Delivers up to 100mA with typical dropout of 1.7V. A 0.1uF ceramic bypass capacitor to GND is recommended close to the pin for stability and transient response. |+| 2 | GND | power_in | Common ground reference for both input and output. Also serves as the thermal path to the PCB copper pattern for SOT-89 heat dissipation (PD = 350mW). |+| 3 | IN | power_in | Unregulated DC input. Recommended range 7V-20V for the 5V variant (absolute maximum 30V for 5-9V output devices). A 0.33uF bypass capacitor to GND close to the pin is recommended when the regulator is far from the input filter. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UTC Unisonic Tech |+| Package | SOT-89-3 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `78L05G-AB3-R`+- `78L05G-AB3-R78L05G-AB3-C-R`+- `78L05G-AB3-R78L05G-AF5-R`+- `78L05G-AB3-R78L05G-S08-R`+- `78L05G-AB3-R78L05G-T92-B`+- `78L05G-AB3-R78L05G-T92-K`+- `78L05G-AB3-R78L05L-T92-B`+- `78L05G-AB3-R78L05L-T92-K`+- `78L05G-AB3-R78L05G-T9N-B`+- `78L05G-AB3-R78L05G-T9N-K`+- `78L05G-AB3-R78L05L-T9N-B`+- `78L05G-AB3-R78L05L-T9N-K`++## CAD (KiCad official)++- Symbol: `78L05G-AB3-R`+- 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:** [UTC Unisonic Tech datasheet](https://datasheet.lcsc.com/datasheet/pdf/72d69b5153774747bd539241086237bc.pdf) (8 pp, sha256 `019cf0ff8e450efc`, 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/78l05g-ab3-r-datasheet.pdf)
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