# MD7023

**Shanghai Mingda Microelectronics** · Monitors & Reset Circuits · SOT-23-3L

MD7023 from Shanghai Mingda Microelectronics, 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 | VOUT | output | Detector output, NMOS open-drain and active low by default (CMOS only for the C suffix), sinking 1.8 mA typ at VOUT=0.2V, with a 10mA absolute maximum output current. |
| 2 | GND | power_in | Ground (VSS) reference pin for the voltage detector. |
| 3 | VDD | power_in | Supply and voltage sense input, operating range 1.5V to 15V, absolute maximum 18V, detecting at 2.3V (±3%) with 0.115V hysteresis for MD7023. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| 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 |
|---|---|---|---|---|---|---|---|
| Hi→Lo Detectable Voltage (VDET) | VDET | 2.231 | 2.3 | 2.369 | V |  | 5 |
| Hysteresis Width | VHYS | 0.02 | 0.05 | 0.07 | % |  | 5 |
| Operating Voltage | VDD | 1.5 |  | 15 | V |  | 5 |
| Operating Current | IDD |  | 1.2 | 3 | uA | 2.9 No load | 5 |
| Output Sink Current | IOL | 1 | 2 |  | mA | VDD 1.8; VOUT=0.2V | 5 |
| Temperature Coefficient of VDET | △V DET/△T A | -0.5 |  | 0.5 | mV/℃ | 0℃<Ta<70℃ | 5 |
| Detectable voltage tolerance (MD7023) |  | -3 |  | 3 | % |  | 2 |
| Supply Voltage |  | -0.3 |  | 18 | V |  | 1 |
| Storage Temperature |  | -50 |  | 125 | ℃ |  | 1 |
| Operating Temperature |  | -40 |  | 85 | ℃ |  | 1 |
| Output Current |  |  |  | 10 | mA |  | 1 |
| Power Consumption |  |  |  | 250 | mW | SOT23-/5 package | 1 |

## CAD (KiCad official)

- Symbol: `MD7023`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `md7023-etched.step` / `md7023-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `md7023.step` / `md7023.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shanghai Mingda Microelectronics datasheet](docs/md7023-datasheet.pdf) (17 pp, sha256 `a73a565d183efa3d`, retrieved 2026-11-05, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/md7023-datasheet.pdf)