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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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Contents

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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

Same part, different packaging or reel option.

  • SSP7901P50MR
  • SSP7901PxxMx
  • SSP7901PxxM5x
  • SSP7901PxxPx
  • SSP7901PxxPBx
  • SSP7901PxxFx
  • SSP7901PxxFBx

CAD (KiCad official)

  • Symbol: SSP7901P50MR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT23-3 (KiCad packages3D, STEP)
  • 3D model files: ssp7901p50mr-etched.step / ssp7901p50mr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ssp7901p50mr.step / ssp7901p50mr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Shanghai Siproin Microelectronics datasheet (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