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CJT1117B-5.0

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by Ray

Jiangsu Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpmiccjt1117b-5.0
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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

markdown

CJT1117B-5.0

Jiangsu · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

CJT1117B-5.0 from Jiangsu, in a SOT-223. 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 return for the regulator. On the fixed-voltage CJT1117B-5.0 this pin is tied to the internal feedback divider and must be connected to system ground.
2 OUTPUT power_out Regulated 5.0V output (4.9V min, 5.1V max over 10mA-1A load, 6.5V-12V input). Requires a 22uF tantalum (or equivalent) output capacitor for stability. Delivers up to 1A continuous.
3 IN power_in Unregulated input voltage. Recommended operating input is up to 15V; absolute max 20V. For 5.0V output requires VIN >= 6.5V to stay in regulation. A 10uF tantalum input bypass capacitor is recommended.

Key specifications

Parameter Value
Manufacturer Jiangsu
Package SOT-223
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • CJT1117B-5.0

CAD (KiCad official)

  • Symbol: CJT1117B-5.0
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cjt1117b-5-0.step 64 KB You want the bare part, or you mark your own boards.
cjt1117b-5-0-etched.step 1.7 MB You want the part with CJT1117B-5.0 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 427 faces against 75 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: Jiangsu datasheet (8 pp, sha256 b0ed54cb65b16a17, 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