UA78M33CDCYR

@@ -0,0 +1,47 @@+# UA78M33CDCYR++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223++UA78M33CDCYR from Texas Instruments, 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 | INPUT | power_in | Unregulated supply input. Recommended operating input voltage 5.3 V to 25 V (absolute maximum 35 V). Bypass to COMMON with a 0.33 µF capacitor located close to the pin. |+| 2 | COMMON | power_in | Device ground / common reference. Also serves as the thermal path via the SOT-223 tab (fused to pin 2). |+| 3 | OUTPUT | power_out | Regulated 3.3-V output, up to 500 mA. Bypass to COMMON with a 0.1 µF capacitor for stability. Dropout voltage typically 2 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `UA78M33CDCYRDCY`+- `UA78M33CDCYRDCYR`+- `UA78M33CDCYRKC`+- `UA78M33CDCYRKCS`+- `UA78M33CDCYRKTP`+- `UA78M33CDCYRKVU`++## CAD (KiCad official)++- Symbol: `UA78M33CDCYR`+- 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:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/ua78m33cdcyr.pdf) (28 pp, sha256 `2f9e83a70e81dd54`, 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/ua78m33cdcyr-datasheet.pdf)

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