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AMS1117CD-1.2
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UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# AMS1117CD-1.2++**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2++AMS1117CD-1.2 from UMW, in a TO-252-2. 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 regulator (labelled ADJ/GND in the pinning table; on fixed-voltage versions this pin is the device ground return). Connect to the system ground plane. |+| 2 | VOUT | power_out | Regulated 1.2V output. Typical accuracy 2% (1.176V min / 1.224V max at IOUT=10mA, VIN=3.2V, TJ=25°C). Requires a 22µF tantalum output capacitor for stability. Supplies up to 1A of load current. |+| 3 | VIN | power_in | Unregulated input supply. Absolute maximum 18V; recommended operating input up to 12V. VIN must exceed VOUT by at least the dropout voltage (typ 1.2V @ 1A). A 10µF input decoupling capacitor is recommended. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | TO-252-2 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `AMS1117CD-1.2CD-1.2`+- `AMS1117CD-1.2CD-1.8`+- `AMS1117CD-1.2CD-3.3`+- `AMS1117CD-1.2CD-5.0`+- `AMS1117CD-1.2CD-ADJ`+- `AMS1117CD-1.2-1.2`+- `AMS1117CD-1.2-1.5`+- `AMS1117CD-1.2-1.8`+- `AMS1117CD-1.2-2.5`+- `AMS1117CD-1.2-3.3`+- `AMS1117CD-1.2-5.0`+- `AMS1117CD-1.2-ADJ`+- `AMS1117CD-1.2-1.2S`+- `AMS1117CD-1.2-3.3s`+- `AMS1117CD-1.2-5.0S`+- `AMS1117CD-1.2-ADJS`++## CAD (KiCad official)++- Symbol: `AMS1117CD-1.2`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252-2 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/ams1117cd-1-2-datasheet.pdf) (13 pp, sha256 `5ec219092aa45bd9`, 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/ams1117cd-1-2-datasheet.pdf)
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