SPX3819M5-L-3-0

@@ -0,0 +1,55 @@+# SPX3819M5-L-3-0++**MaxLinear** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++SPX3819M5-L-3-0 from MaxLinear, 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 | Supply input. Operating input voltage range 2.5V to 16V (absolute max -20V to +20V). Recommend a 1µF input capacitor for stability. |+| 2 | GND | power_in | Device ground reference. |+| 3 | EN | input | Enable input. CMOS-compatible: logic high (VIH ≥ 2V) enables the regulator; logic low or open (VIL ≤ 0.4V) shuts down the device to near-zero current. Absolute max -20V to +20V. May be tied directly to VIN for always-on operation. |+| 4 | BYP | passive | Internal reference bypass pin (fixed-output version, SPX3819M5-L-3-0 is fixed 3.0V). Connect a 10nF capacitor to ground to reduce output noise to as low as 40µVRMS. May be left unconnected if low noise is not required; note that BYP capacitor size affects start-up time. |+| 5 | VOUT | power_out | Regulated output. Fixed 3.0V ±1% at up to 500mA load. Requires an output capacitor for stability (typ. 1µF ceramic or 2.2µF aluminum electrolytic). Current limit typ. 800mA (max 950mA). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | MaxLinear |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `SPX3819M5-L-3-0SPX3819M5-L/TR`+- `SPX3819M5-L-3-0SPX3819M5-L-1-2/TR`+- `SPX3819M5-L-3-0SPX3819M5-L-1-5/TR`+- `SPX3819M5-L-3-0SPX3819M5-L-1-8/TR`+- `SPX3819M5-L-3-0SPX3819M5-L-2-5/TR`+- `SPX3819M5-L-3-0/TR`+- `SPX3819M5-L-3-0SPX3819M5-L-3-3/TR`+- `SPX3819M5-L-3-0SPX3819M5-L-5-0/TR`+- `SPX3819M5-L-3-0SPX3819R2-L/TR`+- `SPX3819M5-L-3-0SPX3819R2-L-1-2/TR`+- `SPX3819M5-L-3-0SPX3819S-L/TR`+- `SPX3819M5-L-3-0SPX3819S-L-5-0/TR`++## CAD (KiCad official)++- Symbol: `SPX3819M5-L-3-0`+- 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:** [MaxLinear datasheet](docs/spx3819m5-l-3-0-datasheet.pdf) (13 pp, sha256 `43b63129331150a2`, 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/spx3819m5-l-3-0-datasheet.pdf)

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