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SSP7901P50MR
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Shanghai Siproin Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT23-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+48@@ -0,0 +1,48 @@+# SSP7901P50MR++**Shanghai Siproin Microelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT23-3++SSP7901P50MR from Shanghai Siproin Microelectronics, in a SOT23-3. 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 / common return for the regulator. Tie to the system single-point ground; the output capacitor return should share this node. |+| 2 | Vout | power_out | Regulated 5.0 V output (fixed by the '50' suffix, tolerance ±2 %). Rated up to 300 mA with internal 340 mA current limit and 140 mA short-circuit fold-back. Requires a 10 µF output capacitor to GND for stability per the application circuit. |+| 3 | Vin | power_in | Unregulated supply input, 2.2 V to 40 V absolute max (36 V recommended). Dropout is typically 20 mV at 10 mA and 350 mV at 100 mA. Decouple with a 10 µF ceramic capacitor to GND close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shanghai Siproin Microelectronics |+| Package | SOT23-3 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `SSP7901P50MR`+- `SSP7901P50MRSSP7901PxxMx`+- `SSP7901P50MRSSP7901PxxM5x`+- `SSP7901P50MRSSP7901PxxPx`+- `SSP7901P50MRSSP7901PxxPBx`+- `SSP7901P50MRSSP7901PxxFx`+- `SSP7901P50MRSSP7901PxxFBx`++## CAD (KiCad official)++- Symbol: `SSP7901P50MR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-3`+- 3D model: SOT23-3 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shanghai Siproin Microelectronics datasheet](docs/ssp7901p50mr-datasheet.pdf) (13 pp, sha256 `d1adf06e9ce079f9`, 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/ssp7901p50mr-datasheet.pdf)
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