# ME3102AM5G

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

ME3102AM5G from MICRONE, 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. Drive above V_EH (>=1.5V) to enable the converter; drive below V_EL (<=0.3V) for shutdown (I_SD ~0.1µA). Do not leave floating. |
| 2 | GND | power_in | Device ground. Return for input decoupling and internal synchronous rectifier; connect to system ground plane with a low-impedance path. |
| 3 | SW | output | Switching node. Connects to the drain of the internal PMOS main switch and NMOS synchronous rectifier. Connect the external inductor (0.6µH-4.7µH) here. Absolute max -0.3V to V_IN. |
| 4 | VIN | power_in | Power supply input, 2.5V to 5.5V (absolute max 6.0V). Bypass with a 22µF plus 0.1µF ceramic capacitor to GND as close to the pin as possible. |
| 5 | FB | input | Feedback input to the internal error amplifier. Regulated to V_FB = 0.6V (typ). Connect to the resistor divider from the output (Vo = 0.6 × (1 + R1/R2)). Absolute max 6.0V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |

## Ordering variants

Same part, different packaging or reel option.

- `ME3102AM5G`
- `ME3102AM5GBM5G`
- `ME3102AM5GBN6AG`
- `ME3102AM5GCN6AG`

## 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 range | VIN | 2.5 |  | 5.5 | V |  | 4 |
| Regulated Feedback Voltage | VFB | 0.588 | 0.6 | 0.612 | V |  | 4 |
| Regulated Output Voltage Accuracy | VO | -3 |  | 3 | % | IO =100mA | 4 |
| Output Voltage Line Regulation | LNR |  | 0.2 | 0.5 | %/V | VIN = 2.5V to5V,Io=10mA | 4 |
| Output Voltage Load Regulation | LDR |  | 0.5 | 1.5 | % | Io=1.0mA to 800mA | 4 |
| Quiescent Current | IQ |  | 45 | 70 | μA | No load | 4 |
| Shutdown Current | ISD |  | 0.1 | 1 | μA | VEN=0V | 4 |
| SW Leakage Current | ILSW | -1 |  | 1 | μA |  | 4 |
| Oscillator Frequency (ME3102A) | FOSC | 1.45 | 1.75 | 2.1 | MHz | VO=100% | 4 |
| Drain-Source On-State Resistance, P MOSFET | RDS(ON) |  | 0.3 | 0.6 | Ω | IDS=100mA | 4 |
| Drain-Source On-State Resistance, N MOSFET | RDS(ON) |  | 0.3 | 0.6 | Ω | IDS=100mA | 4 |
| EN Threshold High | VEH | 1.5 |  |  | V |  | 4 |
| EN Threshold Low | VEL |  |  | 0.3 | V |  | 4 |
| Operating Ambient Temperature | Topr | -40 |  | 85 | °C |  | 4 |
| Power supply voltage | VIN |  |  | 6 | V |  | 4 |
| Voltage at EN and FB pins | VEN,VFB |  |  | 6 | V |  | 4 |
| Voltage at SW pin | VSW | -0.3 |  |  | V |  | 4 |
| Internal Power Dissipation | PD |  |  | 0.6 | mW | SOT23-5 package | 4 |
| Thermal resistance, junction-to-ambient | θJA |  | 210 |  | ºC/W | SOT23-5 package | 4 |
| Storage Temperature | Tstg | -55 |  | 150 | °C |  | 4 |
| Soldering temperature and time | Tsolder |  |  | 260 | °C | 10S | 4 |

## CAD (KiCad official)

- Symbol: `ME3102AM5G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `me3102am5g-etched.step` / `me3102am5g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `me3102am5g.step` / `me3102am5g.glb` are the bare package body.

## 3D model downloads

Two STEP files. Same geometry, different body top:

| File | Size | Use it when |
|---|---|---|
| [`me3102am5g.step`](me3102am5g.step) | 85 KB | You want the bare part, or you mark your own boards. |
| [`me3102am5g-etched.step`](me3102am5g-etched.step) | 1.9 MB | You want the part with `ME3102AM5G` already on it. |

The marking in the etched file is real recessed geometry cut into the solid, not a
texture or a decal: 464 faces against 102 in the bare model. It
survives export, section views, and rendering in any CAD tool, and it drops straight
into KiCad or Fusion with no extra setup.

## Provenance

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

- **Datasheet:** [MICRONE datasheet](docs/me3102am5g-datasheet.pdf) (12 pp, sha256 `1e838e01ddeffb17`, 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/me3102am5g-datasheet.pdf)