# ME2188A33M3G

**MICRONE** · DC-DC Converters · SOT-23-3L

ME2188A33M3G from MICRONE, in a SOT-23-3L. 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; the PCB layout note says to ground this pin sufficiently so the IC's internal zero level does not vary with switching current. |
| 2 | LX | passive | Switch pin connecting to the inductor and the internal switching transistor, with a current limit of 800 to 1200 mA (1000 mA typ) and an absolute maximum of 1000 mA. |
| 3 | VOUT | power_out | Voltage output of the step-up converter (3.3V ±2% for the A33 option), with the output capacitor placed close to it. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | SOT-23-3L |
| Category | Power Management ICs |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VIN | 0.9 |  | 5 | V |  | 4 |
| Start voltage | VSTART |  | 0.85 | 1.1 | V | Iload=1mA, Vin: 0→2V | 4 |
| Hold voltage | Vhold | 0.5 |  |  | V | Iload=1mA, Vin: 2→0V | 4 |
| Current limit | Ilimit | 800 | 1000 | 1200 | mA |  | 4 |
| Quiescent Current | IIN |  | 13 | 15 | μA |  | 4 |
| Efficiency | η |  | 90 | 95 | % |  | 4 |
| Oscillation frequency | FOSC |  | 350 |  | KHz |  | 4 |
| Supply Voltage (absolute maximum) | VMAX |  |  | 8 | V |  | 3 |
| LX pin current | ILXmax |  |  | 1000 | mA |  | 3 |
| Continuous Total Power Dissipation SOT23 | PD |  |  | 300 | mW | SOT23 | 3 |
| Operating Temperature Range | TOPR | -20 |  | 85 | ℃ |  | 3 |
| Storage Temperature Range | TSTG | -40 |  | 125 | ℃ |  | 3 |
| ESD | VESD |  |  | 2000 | V |  | 3 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | ppa |  | body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Nanjing Micro | 12 |

## CAD (KiCad official)

- Symbol: `ME2188A33M3G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `me2188a33m3g-etched.step` / `me2188a33m3g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `me2188a33m3g.step` / `me2188a33m3g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MICRONE datasheet](docs/me2188a33m3g-datasheet.pdf) (12 pp, sha256 `b624060cb1a4f24b`, retrieved 2026-10-31, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-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).

[Datasheet PDF](docs/me2188a33m3g-datasheet.pdf)