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MD7042

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Shanghai Mingda Microelectronics Monitors & Reset Circuits, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MD7042

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md7042.step / md7042.glb are 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, 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