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LR8103A-T12
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LR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+51@@ -0,0 +1,51 @@+# LR8103A-T12++**LR** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L++LR8103A-T12 from LR, in a SOT-23-3L. 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 reference for the regulator. Connect directly to the system ground plane. Return path for both quiescent current and load current. |+| 2 | VOUT | power_out | Regulated fixed output. For the T12 option this is 1.2 V nominal (±1% initial accuracy) with up to 300 mA continuous (450 mA absolute max). Requires an external ceramic output capacitor of at least 1 uF (1-10 uF recommended) close to the pin for stability. |+| 3 | VIN | power_in | Unregulated input supply, 2.2 V to 6.5 V operating (absolute max 9 V). Requires an external ceramic bypass capacitor of at least 1 uF (1-10 uF recommended) placed close to the pin; a small (~10 Ω) series resistor is recommended to absorb upstream input spikes. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | LR |+| Package | SOT-23-3L |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `LR8103A-T12A-T12`+- `LR8103A-T12B-T12`+- `LR8103A-T12A-M18`+- `LR8103A-T12A-M28`+- `LR8103A-T12A-M30`+- `LR8103A-T12A-M33`+- `LR8103A-T12B-N18`+- `LR8103A-T12B-N28`+- `LR8103A-T12B-N30`+- `LR8103A-T12B-N33`++## CAD (KiCad official)++- Symbol: `LR8103A-T12`+- Footprint: `Package_TO_SOT_SMD:SOT-23-3`+- 3D model: SOT-23-3L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [LR datasheet](docs/lr8103a-t12-datasheet.pdf) (14 pp, sha256 `82735f0d7eefd4a2`, 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).++[Datasheet PDF](docs/lr8103a-t12-datasheet.pdf)
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