# ME2108D50M5G

**MICRONE** · DC-DC Converters · SOT-23-5

ME2108D50M5G from MICRONE, in a SOT-23-5. 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 | CE | input | Chip enable input that shuts the converter down to reduce power dissipation; the CE pin voltage is limited to -0.3 V to Vout+0.3 V. |
| 2 | Vout | power_in | Output voltage monitor and IC internal power supply pin; the datasheet requires a minimum-length connection to the output capacitor when an external component is tied to this pin. |
| 3 | NC | unconnected | Not connected; the datasheet assigns no function to this pin. |
| 4 | Vss | power_in | Ground pin, which must be sufficiently grounded because a poor ground lets the internal zero level shift with switching current and makes operation unstable. |
| 5 | EXT | output | External switch transistor drive output; the EXT pin voltage is limited to -0.3 V to Vout+0.3 V and the EXT pin current to ±30 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | SOT-23-5 |
| Category | Power Management ICs |
| Pins | 5 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage (VIN) | VIN |  |  | 6.5 | V |  | 3 |
| Vdd input voltage | Vdd |  |  | 6.5 | V |  | 3 |
| EXT Pin voltage (upper limit printed as Vout+0.3 V) | VEXT | -0.3 |  |  | V |  | 3 |
| CE Pin voltage (upper limit printed as Vout+0.3 V) | VCE | -0.3 |  |  | V |  | 3 |
| EXT Pin current | IEXT | -30 |  | 30 | mA |  | 3 |
| Continuous Total Power Dissipation (SOT23) | Pd |  |  | 300 | mW | SOT23 package | 3 |
| Operating Ambient Temperature | TOpr | -25 |  | 85 | ℃ |  | 3 |
| Storage Temperature | Tstg | -40 |  | 125 | ℃ |  | 3 |
| Soldering temperature | Tsolder |  |  | 260 | ℃ | 10 s | 3 |
| Operating voltage range |  | 0.9 |  | 6.5 | V |  | 1 |
| Output voltage range (step 0.1 V) | VOUT | 2 |  | 7 | V |  | 1 |
| Output voltage accuracy | VOUT | -2.5 |  | 2.5 | % |  | 1 |
| Oscillation Start-up Voltage | Vstart |  |  | 0.9 | V | IOUT=1mA, VIN: 0→2V | 4 |
| Oscillation Frequency | Fosc |  | 180 |  | kHz | Vout=set Vout*0.95 | 4 |
| Efficiency | EFFI |  | 85 |  | % |  | 4 |

## 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 |  | affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior | 12 |

## CAD (KiCad official)

- Symbol: `ME2108D50M5G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `me2108d50m5g-etched.step` / `me2108d50m5g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `me2108d50m5g.step` / `me2108d50m5g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MICRONE datasheet](docs/me2108d50m5g-datasheet.pdf) (12 pp, sha256 `6e1f084acfafa993`, retrieved 2026-10-30, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/me2108d50m5g-datasheet.pdf)