component

SK6513S5A-33

Public Unreviewed

by Ray

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

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Symbol & Footprint

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Contents

README

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SK6513S5A-33

Suntek · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

SK6513S5A-33 from Suntek, in a SOT-23-5L. 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 Input supply voltage. Operating range 4.75V to 40V (absolute max -0.3V to 45V). Recommended 10µF input capacitor (10µF electrolytic or 10µF MLCC with 2Ω series resistor when hot-plugging).
2 GND power_in Device ground reference. Common return for input and output.
3 NC unconnected Not connected. Leave floating or tie to GND per PCB convention.
4 NC unconnected Not connected. Leave floating or tie to GND per PCB convention.
5 VOUT power_out Regulated output. For the -33 suffix, VOUT = 3.3V (±2%). Requires a 10µF output capacitor for stability. Absolute max -0.3V to 6.5V.

Key specifications

Parameter Value
Manufacturer Suntek
Package SOT-23-5L
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • SK6513S5A-XX
  • SK6513S5A-33S5B-XX
  • SK6513S5A-33T3A-XX
  • SK6513S5A-33T3B-XX
  • SK6513S5A-33S3-XX

CAD (KiCad official)

  • Symbol: SK6513S5A-33
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sk6513s5a-33.step 85 KB You want the bare part, or you mark your own boards.
sk6513s5a-33-etched.step 2.6 MB You want the part with SK6513S5A-33 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 603 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: Suntek datasheet (14 pp, sha256 001a18e07e47ab73, 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