1117-3.3

@@ -0,0 +1,49 @@+# 1117-3.3++**IDCHIP 1117 3 3** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++1117-3.3 from IDCHIP 1117 3 3, in a SOT-223. 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 fixed-output (3.3V) version. On adjustable variants this same pin is the ADJ feedback input; on the -3.3 fixed part it is tied to system ground. |+| 2 | VOUT | power_out | Regulated 3.3V output (±1% at TJ=25°C, 3.235-3.365V over 10mA-1A, VIN 4.75-10V). Requires at least 22µF output capacitor for stability per the typical application circuit. |+| 3 | VIN | power_in | Unregulated input supply, up to 12V absolute maximum. For the 3.3V variant, recommended VIN range is 4.75V to 10V. Typical application uses a 10µF input capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | IDCHIP 1117 3 3 |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `1117-3.3H`+- `1117-3.3H-3.3`+- `1117-3.3H-1.8`+- `1117-3.3H-ADJ`+- `1117-3.3R`+- `1117-3.3T`+- `1117-3.3S`+- `1117-3.3D`++## CAD (KiCad official)++- Symbol: `1117-3.3`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [IDCHIP 1117 3 3 datasheet](docs/1117-3-3-datasheet.pdf) (9 pp, sha256 `860cbde3d5dfdba4`, 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/1117-3-3-datasheet.pdf)

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