# DIO6305BCST6

**DIOO** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-6

DIO6305BCST6 from DIOO, in a SOT-23-6. 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 | SW | passive | Boost and rectifying switch node. Connect the external boost inductor (typ. 4.7µH) between VCC and this pin. Internal power MOSFETs switch at 1.2MHz; switch current limit is typ. 1.1A. |
| 2 | GND | power_in | Power ground. Return for the internal power MOSFETs and control circuitry. Should be connected to the system ground plane close to the input and output capacitors. |
| 3 | EN | input | Enable control. Pull high to turn the converter on; drive low to shut down (<1µA shutdown current). VIH ≥ 1.6V, VIL ≤ 0.4V (1.8V logic compatible). Do not float. |
| 4 | FB | input | Output voltage feedback pin. Connect the mid-point of an external resistor divider from VOUT to GND here to program the output voltage. Regulation reference is 500mV (typ., 485-519mV). R2 recommended 100kΩ. |
| 5 | VOUT | power_out | Boost converter output. Connect the output filter capacitor (4.7µF-22µF ceramic, typ. 10µF) here. Adjustable up to 5.25V; output is internally clamped at ~6V. Provides true load disconnect during shutdown. |
| 6 | VCC | power_in | Boost converter supply voltage input, 2.7V to 5.25V. Connect the input decoupling capacitor (≥10µF ceramic) close to this pin. Also serves as the source side of the boost inductor path. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | DIOO |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |

## Ordering variants

Same part, different packaging or reel option.

- `DIO6305BCST6`

## CAD (KiCad official)

- Symbol: `DIO6305BCST6`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `dio6305bcst6-etched.step` / `dio6305bcst6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dio6305bcst6.step` / `dio6305bcst6.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DIOO datasheet](docs/dio6305bcst6-datasheet.pdf) (10 pp, sha256 `403d983cf018071b`, 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/dio6305bcst6-datasheet.pdf)