SSP7903P30JR

@@ -0,0 +1,46 @@+# SSP7903P30JR++**Shanghai Siproin Microelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252++SSP7903P30JR from Shanghai Siproin Microelectronics, in a TO-252. 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 | Unregulated positive supply input. Absolute maximum 40 V (min -0.3 V); minimum operating input 2.2 V. Bypass to GND with a 10 µF (typ. 2.2 µF-4.7 µF) capacitor placed close to the pin. |+| 2 | GND | power_in | Ground reference for the regulator. In the TO-252 package this pin is electrically tied to the exposed heat-slug tab; use a single-point ground return to keep load-regulation error low. Quiescent current 1.6 µA typ. |+| 3 | VOUT | power_out | Regulated positive output. Fixed voltage set by ordering suffix ①② (3.0 V for the -30 variant); tolerance ±2%, dropout 20 mV @ 10 mA (1000 mV @ 1 A), max continuous output current 1 A, current-limit typ. 1.8 A, short-circuit current typ. 120 mA. Requires a 10 µF (typ. 2.2 µF-4.7 µF) output capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shanghai Siproin Microelectronics |+| Package | TO-252 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `SSP7903P30JRJ`+- `SSP7903P30JRP`+- `SSP7903P30JRPB`+- `SSP7903P30JRF`+- `SSP7903P30JRFB`++## CAD (KiCad official)++- Symbol: `SSP7903P30JR`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shanghai Siproin Microelectronics datasheet](docs/ssp7903p30jr-datasheet.pdf) (11 pp, sha256 `d1763cb71baebbea`, 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/ssp7903p30jr-datasheet.pdf)

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