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AH1117CLTR18

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by Ray

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

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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AH1117CLTR18

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3

AH1117CLTR18 from BL Shanghai Belling, in a SOT-223-3. 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 Vss/ADJ power_in Ground pin for fixed-output versions (Vss). On the AH1117-ADJ variant this pin functions as the ADJ feedback input, referenced to the 1.25V internal bandgap. For AH1117CLTR18 (fixed 1.8V) this pin is the device ground.
2 Vout power_out Regulated output voltage. For AH1117CLTR18 the nominal output is 1.8V ±2% at up to 1A load, with 10mV typical load regulation. A 10uF tantalum output capacitor is recommended for stability.
3 Vin power_in Supply voltage input. Recommended operating range up to 12V (absolute max 15V). For 1.8V output, minimum Vin ≈ 3.3V to guarantee regulation; a 10uF tantalum input bypass capacitor is recommended.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-223-3
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • AH1117CLTR12
  • AH1117CLTR15
  • AH1117CLTR18
  • AH1117CLTR25
  • AH1117CLTR33
  • AH1117CLTR50
  • AH1117CLTRAD
  • AH1117CLTR18COTR12
  • AH1117CLTR18COTR15
  • AH1117CLTR18COTR18
  • AH1117CLTR18COTR25
  • AH1117CLTR18COTR33
  • AH1117CLTR18COTR50
  • AH1117CLTR18COTRAD

CAD (KiCad official)

  • Symbol: AH1117CLTR18
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (8 pp, sha256 0ee1c0c75939cf2d, 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