component
MD7039
Public Made by Adomby adom
Shanghai Mingda Microelectronics Supervisor And Reset ICs, SOT-23-3L. 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
markdownMD7039
Shanghai Mingda Microelectronics · Supervisor And Reset ICs · SOT-23-3L
MD7039 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 | N-channel open-drain, active-low detector output (MD7039 default NMOS type) that goes low when VDD falls below the 3.9V detect voltage, sinks 3mA min at VOUT=0.2V, and is limited to 10mA output current. |
| 2 | GND | power_in | Ground (VSS) reference pin for the voltage detector. |
| 3 | VDD | power_in | Supply and voltage-sense input, operating voltage 1.5V to 15V for the MD7039 with an absolute maximum of -0.3V to 18V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-3L |
| 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 |
|---|---|---|---|---|---|---|---|
| Hi→Lo Detectable Voltage | VDET | 3.783 | 3.9 | 4.017 | V | 7 | |
| Hysteresis Width | VHYS | 0.02 | 0.05 | 0.07 | % | 7 | |
| Operating Current | IDD | 0.22 | 3 | uA | VDD=4.9 V; No load | 7 | |
| Operating Voltage | VDD | 1.5 | 15 | V | 7 | ||
| Output Sink Current | IOL | 3 | 6 | mA | VDD=3.7 V; VOUT=0.2V | 7 | |
| Temperature Coefficient of Detectable Voltage | △VDET/△TA | -0.5 | 0.5 | mV/℃ | 0℃<Ta<70℃ | 7 | |
| Supply Voltage | -0.3 | 18 | V | 1 | |||
| Output Current | 10 | mA | 1 | ||||
| Storage Temperature | -50 | 125 | ℃ | 1 | |||
| Operating Temperature | -40 | 85 | ℃ | 1 | |||
| Power Consumption | 250 | mW | SOT23-3/5 package | 1 |
CAD (KiCad official)
- Symbol:
MD7039 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
md7039-etched.step/md7039-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7039.step/md7039.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 2026-10-17, 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).