component
MD7042
Public Made by Adomby adom
Shanghai Mingda Microelectronics Monitors & Reset Circuits, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMD7042
Shanghai Mingda Microelectronics · Monitors & Reset Circuits · SOT-89-3
MD7042 from Shanghai Mingda Microelectronics, 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 | VOUT | output | NMOS open-drain, active-low detector output that pulls low (sink current 3 mA min at VOUT=0.2V) when VDD falls below the 4.2V detect threshold, with output voltage limited to VSS-0.3V to VDD+0.3V and a maximum output current of 10mA. |
| 2 | VDD | power_in | Positive supply input with an operating voltage of 1.5V to 15V and an absolute maximum of -0.3V to 18V, which is also the monitored voltage. |
| 3 | GND | power_in | Ground (VSS) reference pin for the supply and the detector output. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
MD7042 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
md7042-etched.step/md7042-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7042.step/md7042.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (17 pp, sha256
a73a565d183efa3d, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).