component
AH1117CLTR25
Public Unreviewedby Ray
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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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README
markdownAH1117CLTR25
BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223
AH1117CLTR25 from BL Shanghai Belling, 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 / reference pin. On fixed-voltage versions (including the -2.5V AH1117CLTR25) this pin is the device ground return. On the -ADJ variant this same pin is the ADJ feedback node (1.25V reference). |
| 2 | VOUT | power_out | Regulated output voltage. For the AH1117CLTR25 variant this pin delivers a fixed 2.5V ±2% at up to 1A load current. Requires a 10uF tantalum output capacitor for stability. |
| 3 | VIN | power_in | Unregulated supply input. Recommended input range up to 12V (absolute max 15V). For the 2.5V variant, Vin must be at least Vout + dropout (~1.3V at 1A). A 10uF tantalum bypass capacitor is recommended. |
| TAB | VOUT | power_out | Thermal tab / heat-sink pad, electrically connected to VOUT (pin 2) on SOT-223. Solder to a copper pour on the PCB to lower thermal resistance (θJA ~20°C/W package alone). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-223 |
| Category | PMIC |
| Pins | 4 |
Ordering variants
Same part, different packaging or reel option.
AH1117CLTR25AH1117CLTR12AH1117CLTR15AH1117CLTR18AH1117CLTR33AH1117CLTR50AH1117CLTRADAH1117CLTR25COTR25AH1117CLTR25COTR12AH1117CLTR25COTR15AH1117CLTR25COTR18AH1117CLTR25COTR33AH1117CLTR25COTR50AH1117CLTR25COTRAD
CAD (KiCad official)
- Symbol:
AH1117CLTR25 - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL Shanghai Belling datasheet (8 pp, sha256
0d29c0ac9649066e, 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).