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BL1117-25CX
Public Unreviewedby 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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Symbol & Footprint
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markdownBL1117-25CX
BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3
BL1117-25CX 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 | GND | power_in | Ground reference for the regulator. Also serves as the return current path; the SOT-223 tab is electrically connected to this pin for thermal dissipation. |
| 2 | Vout | power_out | Regulated output voltage pin. For BL1117-25 the nominal output is 2.5V (min 2.45V, typ 2.5V, max 2.55V) at up to 1A load. A 10µF tantalum or MLCC output capacitor is recommended for stability. |
| 3 | Vin | power_in | Unregulated input supply pin. Operating input voltage up to 12V (15V absolute max). A 10µF tantalum or MLCC bypass capacitor is recommended close to this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-223-3 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
BL1117-25CXBL1117-25CX25CY
CAD (KiCad official)
- Symbol:
BL1117-25CX - 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 (15 pp, sha256
a7fe7f5c0846d4ca, 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).