XC6219B302MR

@@ -0,0 +1,45 @@+# XC6219B302MR++**UMW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++XC6219B302MR from UMW, in a SOT-23-5. 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 | VIN | power_in | Input supply pin. Accepts 1.8 V to 7 V (absolute max 9 V). Bypass to VSS with a 10 µF ceramic capacitor near the pin. |+| 2 | VSS | power_in | Ground / negative supply reference for the regulator. |+| 3 | CE | input | Chip enable (active-high). VCEH ≥ 1.6 V enables the regulator; VCEL ≤ 0.5 V disables it (turn-off current typ. 0.1 µA). CE input current is ≤ 0.5 µA over VCE = 0 V to VIN. Do not leave floating. |+| 4 | NC | unconnected | No internal connection. Leave floating or tie to VSS. |+| 5 | VOUT | power_out | Regulated output pin. For the B302 option, VOUT = 3.0 V ±2.5%, up to 300 mA. Requires a 10 µF ceramic output capacitor for stability. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `XC6219B302MRMR`+- `XC6219B302MRPR`++## CAD (KiCad official)++- Symbol: `XC6219B302MR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/xc6219b302mr-datasheet.pdf) (9 pp, sha256 `b0229c0bd1c70b57`, 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/xc6219b302mr-datasheet.pdf)

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