component
BL9366
Public Made by Adomby adom
BL Shanghai Belling DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 1mo ago |
| viewers | 1mo ago |
| bl9366-etched.glb | 1mo ago |
| bl9366-etched.step | 1mo ago |
| bl9366-hero.glb | 1mo ago |
| bl9366-hero.overlay.json | 1mo ago |
| bl9366.glb | 1mo ago |
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BL9366
BL Shanghai Belling · DC-DC Converters · SOT-23-6
BL9366 from BL Shanghai Belling, in a SOT-23-6. 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 | BST | passive | Bootstrap pin: connect a capacitor between SW and BST to form a floating supply across the power switch driver, driving the switch gate above the supply voltage. |
| 2 | GND | power_in | Ground and voltage reference for the regulated output voltage; needs special layout care and must be isolated from the D1 to C1 ground path to prevent switching current spikes. |
| 3 | FB | input | Feedback input that sets the output voltage via an external resistor divider from the output to GND; the oscillator frequency folds back when FB is below 250mV to prevent current-limit runaway during a short-circuit fault. |
| 4 | EN | input | On/Off control: pull EN above 1.35V to turn the device on; for automatic enable, connect to VIN using a 0.1MΩ resistor. |
| 5 | VIN | power_in | Supply voltage input (5.0V to 60V operating range) that requires input capacitor C1 to prevent large voltage spikes at the input. |
| 6 | SW | output | Power switching output, the drain of the N-channel power MOSFET, supplying power to the output LC filter. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
BL9366 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
bl9366-etched.step/bl9366-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bl9366.step/bl9366.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL Shanghai Belling datasheet (8 pp, sha256
c4c0d6bd06e2972d, retrieved 2026-10-09, 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).