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AH1117CLTR25
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BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+58@@ -0,0 +1,58 @@+# AH1117CLTR25++**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.++- `AH1117CLTR25`+- `AH1117CLTR12`+- `AH1117CLTR15`+- `AH1117CLTR18`+- `AH1117CLTR33`+- `AH1117CLTR50`+- `AH1117CLTRAD`+- `AH1117CLTR25COTR25`+- `AH1117CLTR25COTR12`+- `AH1117CLTR25COTR15`+- `AH1117CLTR25COTR18`+- `AH1117CLTR25COTR33`+- `AH1117CLTR25COTR50`+- `AH1117CLTR25COTRAD`++## 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](docs/ah1117cltr25-datasheet.pdf) (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).++[Datasheet PDF](docs/ah1117cltr25-datasheet.pdf)
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