component
BL8531CC3TR30
Public Made by Adomby adom
BL(Shanghai Belling) DC-DC Converters, SOT-89-3. Pinout cross-checked by two models against the datasheet, 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
markdownBL8531CC3TR30
BL(Shanghai Belling) · DC-DC Converters · SOT-89-3
BL8531CC3TR30 from BL(Shanghai Belling), in a SOT-89-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground pin of the controller. |
| 2 | OUT | power_in | Output pin that supplies power to the internal circuitry, with an absolute maximum voltage range of -0.3V to 12V. |
| 3 | EXT | output | Switching pin that drives the external NMOSFET or NPN transistor, with an absolute maximum voltage of -0.3V to (VOUT+0.3V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL(Shanghai Belling) |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
BL8531CC3TR30 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
bl8531cc3tr30-etched.step/bl8531cc3tr30-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bl8531cc3tr30.step/bl8531cc3tr30.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL(Shanghai Belling) datasheet (12 pp, sha256
728fb85b6bf28bac, retrieved 2026-11-02, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).