# QX2303L30F

**QX Micro Devices** · DC-DC Converters · SOT-23-5

QX2303L30F from QX Micro Devices, in a SOT-23-5. 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 | EN | input | Chip enable input, active-high. VIH >= 0.4*VOUT, VIL <= 0.2V. Input current +/-0.1uA typical. Pulling low puts the chip in shutdown (IINQ <= 1uA). |
| 2 | VOUT | power_in | Output voltage sense / bootstrap supply pin. Connects to the boosted output rail (nominal 3.0V for QX2303L30F). Datasheet labels this pin type as 'input' since the internal error amplifier and bias derive power from here. Absolute max 7V. |
| 3 | NC | unconnected | No connection. Leave floating. |
| 4 | GND | power_in | Power ground / reference return for the converter. |
| 5 | LX | output | Internal MOSFET switch drain / inductor node. Connects to the boost inductor and Schottky diode anode. ILX max 1000mA; current limit 600-1000mA (typ 800mA). Absolute max 7V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | QX Micro Devices |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |

## Ordering variants

Same part, different packaging or reel option.

- `QX2303L30FLXXT`
- `QX2303L30FLXXF`
- `QX2303L30FEXXF`
- `QX2303L30FLXXE`
- `QX2303L30FLXXPO`

## CAD (KiCad official)

- Symbol: `QX2303L30F`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `qx2303l30f-etched.step` / `qx2303l30f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `qx2303l30f.step` / `qx2303l30f.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [QX Micro Devices datasheet](docs/qx2303l30f-datasheet.pdf) (14 pp, sha256 `d242bea889c7a76b`, retrieved 2026-08-17, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/qx2303l30f-datasheet.pdf)