component

SSP7603P33M5R

Public Unreviewed

by Ray

Shanghai Siproin Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Contents

README

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SSP7603P33M5R

Shanghai Siproin Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

SSP7603P33M5R from Shanghai Siproin Microelectronics, 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 Unregulated positive supply input. Operating range 3.5V to 15V (abs max 18V). Decouple with a 1uF capacitor from VIN to GND close to the pin.
2 GND power_in Ground reference return for both the input and regulated output. Must be tied to system ground.
3 CE input Chip Enable input. Drive high to enable the regulator; drive low to place the device in shutdown. Should not be left floating.
4 NC unconnected No internal connection. Leave floating or tie to any convenient net; typically left open.
5 VOUT power_out Regulated 3.3V output (tolerance +/-2%), rated for up to 500mA. Decouple with a 1uF tantalum or 6.8uF ceramic capacitor to GND.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • SSP7603P33M5R
  • SSP7603P33M5RM5G
  • SSP7603P33M5RPR
  • SSP7603P33M5RPG
  • SSP7603P33M5RMR
  • SSP7603P33M5RMG

CAD (KiCad official)

  • Symbol: SSP7603P33M5R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ssp7603p33m5r.step 85 KB You want the bare part, or you mark your own boards.
ssp7603p33m5r-etched.step 2.9 MB You want the part with SSP7603P33M5R already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 683 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Shanghai Siproin Microelectronics datasheet (9 pp, sha256 3b68c21dd6651bc3, 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