# ME6249A33PG

**MICRONE** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

ME6249A33PG from MICRONE, in a SOT-89-3. 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 | VSS | power_in | Ground pin (地) for the regulator; the datasheet gives no separate electrical limit for this pin. |
| 2 | VIN | power_in | Power supply input (电源输入端); for the ME6249A33 the input voltage is specified at 3.3 V to 18 V, with an absolute maximum of 20 V. |
| 3 | VOUT | power_out | Regulated voltage output (电压输出端); the ME6249A33 nominal output is 3.3 V with ±1% accuracy and up to 250 mA maximum output current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | SOT-89-3 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage (effective) | VOUT(E) | 0.99 |  | 1.01 | X VOUT(T) | IOUT=40mA | 4 |
| Input voltage | VIN | 3.3 |  | 18 | V |  | 4 |
| Maximum output current | IOUT_max |  |  | 250 | mA | VIN= VOUT+1V | 4 |
| Load regulation | ΔVOUT |  | 45 | 90 | mV | VIN= VOUT +1V, 1mA≤IOUT≤150mA | 4 |
| Dropout voltage | VDIF |  |  | 80 | mV | IOUT =40mA | 4 |
| Quiescent current | ISS |  | 3 | 6 | μA | VIN= VOUT +1.5V | 4 |
| Line regulation | ΔVOUT/(ΔVIN×VOUT) |  | 0.2 | 0.3 | %/V | IOUT =1mA, VOUT +1V ≤VIN≤12V | 4 |
| Output voltage temperature coefficient | ΔVOUT/(VOUT×ΔTa) |  |  | 65 | ppm/℃ | IOUT=40mA, -40℃≤Ta≤85℃ | 4 |
| Input voltage (absolute maximum) | VIN |  |  | 20 | V |  | 3 |
| Output current (absolute maximum) | IOUT |  |  | 300 | mA |  | 3 |
| Output voltage range (absolute maximum) | VOUT | -0.3 |  |  | V | Referenced to Vss (min Vss-0.3); upper limit is VIN+0.3 V, not a fixed number | 3 |
| Power dissipation | PD |  |  | 1.25 | W | SOT89-3 package | 3 |
| Thermal resistance junction to ambient | θJA |  | 100 |  | ºC /W | SOT89-3 package | 3 |
| Operating temperature range | TOPR | -40 |  | 85 | ºC |  | 3 |
| Storage temperature range | TSTG | -55 |  | 150 | ºC |  | 3 |
| Maximum junction temperature | TJ | -40 |  | 150 | ºC |  | 3 |
| Soldering temperature |  |  |  | 260 | ℃ | 10 sec | 3 |

## CAD (KiCad official)

- Symbol: `ME6249A33PG`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `me6249a33pg-etched.step` / `me6249a33pg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `me6249a33pg.step` / `me6249a33pg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MICRONE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906740771663872) (9 pp, sha256 `b2b553d746bd48ac`, retrieved 2026-10-18, 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:** 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/me6249a33pg-datasheet.pdf)