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MD7350
Public Made by Adomby adom
Shanghai Mingda Microelectronics Linear Voltage Regulators (LDO), SOT-23-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MD7350
Shanghai Mingda Microelectronics · Linear Voltage Regulators (LDO) · SOT-23-3L
MD7350 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 | GND | power_in | Ground (VSS) pin, bottom-left of the SOT-23-3 drawing; connect the output capacitor CL (2.2 µF or more) close to VOUT and GND. |
| 2 | OUT | power_out | Regulated 5.0 V output (±2%, 300 mA at VIN=7 V) with short-circuit current limit of 15 to 50 mA; needs a CL of 2.2 µF or more and must not exceed VIN+0.3 V. |
| 3 | VDD | power_in | Input supply pin (VIN), top of the SOT-23-3 drawing; absolute maximum 18 V, input capacitor CIN of 1.0 µF or more recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-3L |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage | VOUT | 4.91 | 5 | 5.1 | V | VIN=7V, IOUT=10mA | 5 |
| Output current | IOUT | 300 | mA | VIN=7V | 5 | ||
| Dropout voltage | Vdrop | 5 | mV | IOUT=1 mA | 5 | ||
| Dropout voltage | Vdrop | 180 | mV | IOUT=100 mA | 5 | ||
| Line regulation | ΔVOUT1/ΔVIN·VOUT | 0.05 | 0.2 | %/V | 6V≤VIN≤15V, IOUT=1mA | 5 | |
| Load regulation | ΔVOUT2 | 60 | 100 | mV | VIN=7V, 1.0mA≤IOUT≤300mA | 5 | |
| Output voltage temperature coefficient | ΔVOUT/ΔTa·VOUT | 50 | 100 | ppm/°C | VIN=7V, IOUT=10mA, -40℃≤Ta≤85℃ | 5 | |
| Supply current | ISS1 | 1.2 | 2.5 | uA | VIN=15V, no load | 5 | |
| Input voltage | VIN | 18 | V | 5 | |||
| Output short-circuit current | Ilim | 15 | 50 | mA | Vout=0V | 5 | |
| Input voltage | VIN | 18 | V | Ta=25℃ | 2 | ||
| Operating ambient temperature | Topr | -40 | 85 | ℃ | 2 | ||
| Storage temperature | Tstg | -40 | 125 | ℃ | 2 | ||
| Input capacitor | CIN | 1 | µF | 6 | |||
| Output capacitor | CL | 2.2 | µF | tantalum capacitor | 6 |
CAD (KiCad official)
- Symbol:
MD7350 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
md7350-etched.step/md7350-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md7350.step/md7350.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Mingda Microelectronics datasheet (13 pp, sha256
f5efc29fea38182c, retrieved 2026-10-23, 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, 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).
# MD7350
**Shanghai Mingda Microelectronics** · Linear Voltage Regulators (LDO) · SOT-23-3L
MD7350 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 | GND | power_in | Ground (VSS) pin, bottom-left of the SOT-23-3 drawing; connect the output capacitor CL (2.2 µF or more) close to VOUT and GND. |
| 2 | OUT | power_out | Regulated 5.0 V output (±2%, 300 mA at VIN=7 V) with short-circuit current limit of 15 to 50 mA; needs a CL of 2.2 µF or more and must not exceed VIN+0.3 V. |
| 3 | VDD | power_in | Input supply pin (VIN), top of the SOT-23-3 drawing; absolute maximum 18 V, input capacitor CIN of 1.0 µF or more recommended. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-3L |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage | VOUT | 4.91 | 5 | 5.1 | V | VIN=7V, IOUT=10mA | 5 |
| Output current | IOUT | 300 | | | mA | VIN=7V | 5 |
| Dropout voltage | Vdrop | | 5 | | mV | IOUT=1 mA | 5 |
| Dropout voltage | Vdrop | | 180 | | mV | IOUT=100 mA | 5 |
| Line regulation | ΔVOUT1/ΔVIN·VOUT | | 0.05 | 0.2 | %/V | 6V≤VIN≤15V, IOUT=1mA | 5 |
| Load regulation | ΔVOUT2 | | 60 | 100 | mV | VIN=7V, 1.0mA≤IOUT≤300mA | 5 |
| Output voltage temperature coefficient | ΔVOUT/ΔTa·VOUT | | 50 | 100 | ppm/°C | VIN=7V, IOUT=10mA, -40℃≤Ta≤85℃ | 5 |
| Supply current | ISS1 | | 1.2 | 2.5 | uA | VIN=15V, no load | 5 |
| Input voltage | VIN | | | 18 | V | | 5 |
| Output short-circuit current | Ilim | 15 | | 50 | mA | Vout=0V | 5 |
| Input voltage | VIN | | | 18 | V | Ta=25℃ | 2 |
| Operating ambient temperature | Topr | -40 | | 85 | ℃ | | 2 |
| Storage temperature | Tstg | -40 | | 125 | ℃ | | 2 |
| Input capacitor | CIN | 1 | | | µF | | 6 |
| Output capacitor | CL | 2.2 | | | µF | tantalum capacitor | 6 |
## CAD (KiCad official)
- Symbol: `MD7350`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `md7350-etched.step` / `md7350-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `md7350.step` / `md7350.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shanghai Mingda Microelectronics datasheet](docs/md7350-datasheet.pdf) (13 pp, sha256 `f5efc29fea38182c`, retrieved 2026-10-23, 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-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/md7350-datasheet.pdf)