# BL8064CB3TR28

**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L

BL8064CB3TR28 from BL Shanghai Belling, in a SOT-23-3L. 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 for the regulator. Common return for input and output capacitors. |
| 2 | Vout | power_out | Regulated output voltage pin. For the -28 suffix this is 2.8V, factory-trimmed to ±2% and rated for up to 200mA. Requires a 1uF ceramic output capacitor (Cout) to GND for stability. |
| 3 | Vin | power_in | Supply voltage input, recommended 1.5V-8V (absolute max 10V). Requires a 1uF ceramic input capacitor (Cin) to GND. Must be at least Vout+dropout (430mV @ 200mA for Vout=2.8V) for regulation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | SOT-23-3L |
| Category | PMIC |
| Pins | 3 |

## Ordering variants

- `BL8064CB3TR28`
- `BL8064CB3TR28CB3ATR`
- `BL8064CB3TR28CB5TR`
- `BL8064CB3TR28CC3TR`
- `BL8064CB3TR28CHBG`

## CAD (KiCad official)

- Symbol: `BL8064CB3TR28`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `bl8064cb3tr28-etched.step` / `bl8064cb3tr28-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bl8064cb3tr28.step` / `bl8064cb3tr28.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [BL Shanghai Belling datasheet](docs/bl8064cb3tr28-datasheet.pdf) (9 pp, sha256 `1e0b78c647255af7`, 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/bl8064cb3tr28-datasheet.pdf)