# ME6231C50M5G

**MICRONE** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

ME6231C50M5G 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 | VIN | power_in | Voltage input pin; the operating input range is 3 V to 18 V, and the absolute maximum VIN range is -0.3 V to 20 V. |
| 2 | Vss | power_in | Ground pin for the regulator. |
| 3 | CE | input | Enable pin, active high on the C-series variant (VCEH at least 1.7 V to turn on, VCEL at most 0.5 V to turn off); it must not be left floating, and its absolute range is VIN-0.3 V to VIN+0.3 V. |
| 4 | NC | unconnected | No-connect pin with no function stated in the datasheet. |
| 5 | VOUT | power_out | Regulated voltage output rated for 500 mA maximum output current (absolute maximum 600 mA), with an absolute range of VIN-0.3 V to VIN+0.3 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating voltage | VIN | 3 |  | 18 | V |  | 5 |
| Output voltage (effective) (Note 2) | VOUT(E) | 0.99 |  |  | X | IOUT=10mA, VIN=VOUT+1V | 5 |
| Output voltage (specified) (Note 1) | VOUT(T) |  |  | 1.01 | X |  | 5 |
| Load regulation | ΔVOUT |  | 7 | 20 | mV | VIN=VOUT+1V, 1mA≤IOUT≤100mA | 5 |
| Quiescent current | ISS |  | 1.8 | 3.6 | μA | VIN=VOUT+1V | 5 |
| Shutdown current | ICEL |  | 0 | 0.2 | μA | VCE=0V | 5 |
| CE pin high-level voltage (on) | VCEH | 1.7 |  |  | V | 开启 | 5 |
| CE pin low-level voltage (off) | VCEL |  |  | 0.5 | V | 关断 | 5 |
| Dropout voltage | VDIF |  | 125 |  | mV | IOUT=100mA, 3.0V≤VOUT | 5 |
| Maximum output current | IOUTMAX |  | 500 |  | mA | VIN=VOUT+1V | 5 |
| Current limit | ILIM |  | 780 |  | mA | 最大输出电流 | 5 |
| Line regulation |  |  | 0.05 |  | %/V | IOUT=30mA, VOUT+1V≤VIN≤18V | 5 |
| Active output discharge resistance | RDIS |  | 500 |  | Ω | VCE<0.5V | 5 |
| Power supply rejection ratio | PSRR |  | 76 |  | dB | VIN=5V+1VrmsAC, IOUT=10mA, f=100Hz | 5 |
| Power supply rejection ratio | PSRR |  | 65 |  | dB | VIN=5V+1VrmsAC, IOUT=10mA, f=1kHz | 5 |
| Power supply rejection ratio | PSRR |  | 45 |  | dB | VIN=5V+1VrmsAC, IOUT=10mA, f=10kHz | 5 |
| Thermal shutdown temperature | TSD |  | 165 |  | ℃ | 温度上升，IOUT=20mA | 5 |
| Thermal shutdown hysteresis | ΔTSD |  | 20 |  | ℃ | 温度下降 | 5 |
| Input voltage (VIN pin) | VIN | -0.3 |  | 20 | V |  | 4 |
| Output current (VOUT pin) | IOUT |  |  | 600 | mA |  | 4 |
| Package power dissipation (SOT23-5) | Pd |  |  | 0.6 | W | TA=25℃ | 4 |
| Thermal resistance junction to ambient (SOT23-5) | θJA |  | 210 |  | ℃/W | junction to ambient | 4 |
| Operating ambient temperature range | TOpr | -40 |  | 85 | ℃ |  | 4 |
| Storage temperature range | Tstg | -55 |  | 150 | ℃ |  | 4 |
| Junction temperature range | TJ | -40 |  | 150 | ℃ |  | 4 |

## CAD (KiCad official)

- Symbol: `ME6231C50M5G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `me6231c50m5g-etched.step` / `me6231c50m5g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `me6231c50m5g.step` / `me6231c50m5g.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/8588904206572916736) (13 pp, sha256 `3d53589a7fa35e40`, retrieved 2026-10-09, 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/me6231c50m5g-datasheet.pdf)